Updated the files.

my-app/node_modules/@npmcli/agent/README.md

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+## @npmcli/agent
+
+A pair of Agent implementations for nodejs that provide consistent keep-alives, granular timeouts, dns caching, and proxy support.
+
+### Usage
+
+```js
+const { getAgent, HttpAgent } = require('@npmcli/agent')
+const fetch = require('minipass-fetch')
+
+const main = async () => {
+    // if you know what agent you need, you can create one directly
+    const agent = new HttpAgent(agentOptions)
+    // or you can use the getAgent helper, it will determine and create an Agent
+    // instance for you as well as reuse that agent for new requests as appropriate
+    const agent = getAgent('https://registry.npmjs.org/npm', agentOptions)
+    // minipass-fetch is just an example, this will work for any http client that
+    // supports node's Agents
+    const res = await fetch('https://registry.npmjs.org/npm', { agent })
+}
+
+main()
+```
+
+### Options
+
+All options supported by the node Agent implementations are supported here, see [the docs](https://nodejs.org/api/http.html#new-agentoptions) for those.
+
+Options that have been added by this module include:
+
+- `family`: what tcp family to use, can be `4` for IPv4, `6` for IPv6 or `0` for both.
+- `proxy`: a URL to a supported proxy, currently supports `HTTP CONNECT` based http/https proxies as well as socks4 and 5.
+- `dns`: configuration for the built-in dns cache
+    - `ttl`: how long (in milliseconds) to keep cached dns entries, defaults to `5 * 60 * 100 (5 minutes)`
+    - `lookup`: optional function to override how dns lookups are performed, defaults to `require('dns').lookup`
+- `timeouts`: a set of granular timeouts, all default to `0`
+    - `connection`: time between initiating connection and actually connecting
+    - `idle`: time between data packets (if a top level `timeout` is provided, it will be copied here)
+    - `response`: time between sending a request and receiving a response
+    - `transfer`: time between starting to receive a request and consuming the response fully

my-app/node_modules/@npmcli/agent/lib/agents.js

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+'use strict'
+
+const net = require('net')
+const tls = require('tls')
+const { once } = require('events')
+const timers = require('timers/promises')
+const { normalizeOptions, cacheOptions } = require('./options')
+const { getProxy, getProxyAgent, proxyCache } = require('./proxy.js')
+const Errors = require('./errors.js')
+const { Agent: AgentBase } = require('agent-base')
+
+module.exports = class Agent extends AgentBase {
+  #options
+  #timeouts
+  #proxy
+  #noProxy
+  #ProxyAgent
+
+  constructor (options = {}) {
+    const { timeouts, proxy, noProxy, ...normalizedOptions } = normalizeOptions(options)
+
+    super(normalizedOptions)
+
+    this.#options = normalizedOptions
+    this.#timeouts = timeouts
+
+    if (proxy) {
+      this.#proxy = new URL(proxy)
+      this.#noProxy = noProxy
+      this.#ProxyAgent = getProxyAgent(proxy)
+    }
+  }
+
+  get proxy () {
+    return this.#proxy ? { url: this.#proxy } : {}
+  }
+
+  #getProxy (options) {
+    if (!this.#proxy) {
+      return
+    }
+
+    const proxy = getProxy(`${options.protocol}//${options.host}:${options.port}`, {
+      proxy: this.#proxy,
+      noProxy: this.#noProxy,
+    })
+
+    if (!proxy) {
+      return
+    }
+
+    const cacheKey = cacheOptions({
+      ...options,
+      ...this.#options,
+      timeouts: this.#timeouts,
+      proxy,
+    })
+
+    if (proxyCache.has(cacheKey)) {
+      return proxyCache.get(cacheKey)
+    }
+
+    let ProxyAgent = this.#ProxyAgent
+    if (Array.isArray(ProxyAgent)) {
+      ProxyAgent = this.isSecureEndpoint(options) ? ProxyAgent[1] : ProxyAgent[0]
+    }
+
+    const proxyAgent = new ProxyAgent(proxy, this.#options)
+    proxyCache.set(cacheKey, proxyAgent)
+
+    return proxyAgent
+  }
+
+  // takes an array of promises and races them against the connection timeout
+  // which will throw the necessary error if it is hit. This will return the
+  // result of the promise race.
+  async #timeoutConnection ({ promises, options, timeout }, ac = new AbortController()) {
+    if (timeout) {
+      const connectionTimeout = timers.setTimeout(timeout, null, { signal: ac.signal })
+        .then(() => {
+          throw new Errors.ConnectionTimeoutError(`${options.host}:${options.port}`)
+        }).catch((err) => {
+          if (err.name === 'AbortError') {
+            return
+          }
+          throw err
+        })
+      promises.push(connectionTimeout)
+    }
+
+    let result
+    try {
+      result = await Promise.race(promises)
+      ac.abort()
+    } catch (err) {
+      ac.abort()
+      throw err
+    }
+    return result
+  }
+
+  async connect (request, options) {
+    // if the connection does not have its own lookup function
+    // set, then use the one from our options
+    options.lookup ??= this.#options.lookup
+
+    let socket
+    let timeout = this.#timeouts.connection
+    const isSecureEndpoint = this.isSecureEndpoint(options)
+
+    const proxy = this.#getProxy(options)
+    if (proxy) {
+      // some of the proxies will wait for the socket to fully connect before
+      // returning so we have to await this while also racing it against the
+      // connection timeout.
+      const start = Date.now()
+      socket = await this.#timeoutConnection({
+        options,
+        timeout,
+        promises: [proxy.connect(request, options)],
+      })
+      // see how much time proxy.connect took and subtract it from
+      // the timeout
+      if (timeout) {
+        timeout = timeout - (Date.now() - start)
+      }
+    } else {
+      socket = (isSecureEndpoint ? tls : net).connect(options)
+    }
+
+    socket.setKeepAlive(this.keepAlive, this.keepAliveMsecs)
+    socket.setNoDelay(this.keepAlive)
+
+    const abortController = new AbortController()
+    const { signal } = abortController
+
+    const connectPromise = socket[isSecureEndpoint ? 'secureConnecting' : 'connecting']
+      ? once(socket, isSecureEndpoint ? 'secureConnect' : 'connect', { signal })
+      : Promise.resolve()
+
+    await this.#timeoutConnection({
+      options,
+      timeout,
+      promises: [
+        connectPromise,
+        once(socket, 'error', { signal }).then((err) => {
+          throw err[0]
+        }),
+      ],
+    }, abortController)
+
+    if (this.#timeouts.idle) {
+      socket.setTimeout(this.#timeouts.idle, () => {
+        socket.destroy(new Errors.IdleTimeoutError(`${options.host}:${options.port}`))
+      })
+    }
+
+    return socket
+  }
+
+  addRequest (request, options) {
+    const proxy = this.#getProxy(options)
+    // it would be better to call proxy.addRequest here but this causes the
+    // http-proxy-agent to call its super.addRequest which causes the request
+    // to be added to the agent twice. since we only support 3 agents
+    // currently (see the required agents in proxy.js) we have manually
+    // checked that the only public methods we need to call are called in the
+    // next block. this could change in the future and presumably we would get
+    // failing tests until we have properly called the necessary methods on
+    // each of our proxy agents
+    if (proxy?.setRequestProps) {
+      proxy.setRequestProps(request, options)
+    }
+
+    request.setHeader('connection', this.keepAlive ? 'keep-alive' : 'close')
+
+    if (this.#timeouts.response) {
+      let responseTimeout
+      request.once('finish', () => {
+        setTimeout(() => {
+          request.destroy(new Errors.ResponseTimeoutError(request, this.#proxy))
+        }, this.#timeouts.response)
+      })
+      request.once('response', () => {
+        clearTimeout(responseTimeout)
+      })
+    }
+
+    if (this.#timeouts.transfer) {
+      let transferTimeout
+      request.once('response', (res) => {
+        setTimeout(() => {
+          res.destroy(new Errors.TransferTimeoutError(request, this.#proxy))
+        }, this.#timeouts.transfer)
+        res.once('close', () => {
+          clearTimeout(transferTimeout)
+        })
+      })
+    }
+
+    return super.addRequest(request, options)
+  }
+}

my-app/node_modules/@npmcli/agent/lib/dns.js

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+'use strict'
+
+const { LRUCache } = require('lru-cache')
+const dns = require('dns')
+
+// this is a factory so that each request can have its own opts (i.e. ttl)
+// while still sharing the cache across all requests
+const cache = new LRUCache({ max: 50 })
+
+const getOptions = ({
+  family = 0,
+  hints = dns.ADDRCONFIG,
+  all = false,
+  verbatim = undefined,
+  ttl = 5 * 60 * 1000,
+  lookup = dns.lookup,
+}) => ({
+  // hints and lookup are returned since both are top level properties to (net|tls).connect
+  hints,
+  lookup: (hostname, ...args) => {
+    const callback = args.pop() // callback is always last arg
+    const lookupOptions = args[0] ?? {}
+
+    const options = {
+      family,
+      hints,
+      all,
+      verbatim,
+      ...(typeof lookupOptions === 'number' ? { family: lookupOptions } : lookupOptions),
+    }
+
+    const key = JSON.stringify({ hostname, ...options })
+
+    if (cache.has(key)) {
+      const cached = cache.get(key)
+      return process.nextTick(callback, null, ...cached)
+    }
+
+    lookup(hostname, options, (err, ...result) => {
+      if (err) {
+        return callback(err)
+      }
+
+      cache.set(key, result, { ttl })
+      return callback(null, ...result)
+    })
+  },
+})
+
+module.exports = {
+  cache,
+  getOptions,
+}

my-app/node_modules/@npmcli/agent/lib/errors.js

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+'use strict'
+
+class InvalidProxyProtocolError extends Error {
+  constructor (url) {
+    super(`Invalid protocol \`${url.protocol}\` connecting to proxy \`${url.host}\``)
+    this.code = 'EINVALIDPROXY'
+    this.proxy = url
+  }
+}
+
+class ConnectionTimeoutError extends Error {
+  constructor (host) {
+    super(`Timeout connecting to host \`${host}\``)
+    this.code = 'ECONNECTIONTIMEOUT'
+    this.host = host
+  }
+}
+
+class IdleTimeoutError extends Error {
+  constructor (host) {
+    super(`Idle timeout reached for host \`${host}\``)
+    this.code = 'EIDLETIMEOUT'
+    this.host = host
+  }
+}
+
+class ResponseTimeoutError extends Error {
+  constructor (request, proxy) {
+    let msg = 'Response timeout '
+    if (proxy) {
+      msg += `from proxy \`${proxy.host}\` `
+    }
+    msg += `connecting to host \`${request.host}\``
+    super(msg)
+    this.code = 'ERESPONSETIMEOUT'
+    this.proxy = proxy
+    this.request = request
+  }
+}
+
+class TransferTimeoutError extends Error {
+  constructor (request, proxy) {
+    let msg = 'Transfer timeout '
+    if (proxy) {
+      msg += `from proxy \`${proxy.host}\` `
+    }
+    msg += `for \`${request.host}\``
+    super(msg)
+    this.code = 'ETRANSFERTIMEOUT'
+    this.proxy = proxy
+    this.request = request
+  }
+}
+
+module.exports = {
+  InvalidProxyProtocolError,
+  ConnectionTimeoutError,
+  IdleTimeoutError,
+  ResponseTimeoutError,
+  TransferTimeoutError,
+}

my-app/node_modules/@npmcli/agent/lib/index.js

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+'use strict'
+
+const { LRUCache } = require('lru-cache')
+const { normalizeOptions, cacheOptions } = require('./options')
+const { getProxy, proxyCache } = require('./proxy.js')
+const dns = require('./dns.js')
+const Agent = require('./agents.js')
+
+const agentCache = new LRUCache({ max: 20 })
+
+const getAgent = (url, { agent, proxy, noProxy, ...options } = {}) => {
+  // false has meaning so this can't be a simple truthiness check
+  if (agent != null) {
+    return agent
+  }
+
+  url = new URL(url)
+
+  const proxyForUrl = getProxy(url, { proxy, noProxy })
+  const normalizedOptions = {
+    ...normalizeOptions(options),
+    proxy: proxyForUrl,
+  }
+
+  const cacheKey = cacheOptions({
+    ...normalizedOptions,
+    secureEndpoint: url.protocol === 'https:',
+  })
+
+  if (agentCache.has(cacheKey)) {
+    return agentCache.get(cacheKey)
+  }
+
+  const newAgent = new Agent(normalizedOptions)
+  agentCache.set(cacheKey, newAgent)
+
+  return newAgent
+}
+
+module.exports = {
+  getAgent,
+  Agent,
+  // these are exported for backwards compatability
+  HttpAgent: Agent,
+  HttpsAgent: Agent,
+  cache: {
+    proxy: proxyCache,
+    agent: agentCache,
+    dns: dns.cache,
+    clear: () => {
+      proxyCache.clear()
+      agentCache.clear()
+      dns.cache.clear()
+    },
+  },
+}

my-app/node_modules/@npmcli/agent/lib/options.js

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+'use strict'
+
+const dns = require('./dns')
+
+const normalizeOptions = (opts) => {
+  const family = parseInt(opts.family ?? '0', 10)
+  const keepAlive = opts.keepAlive ?? true
+
+  const normalized = {
+    // nodejs http agent options. these are all the defaults
+    // but kept here to increase the likelihood of cache hits
+    // https://nodejs.org/api/http.html#new-agentoptions
+    keepAliveMsecs: keepAlive ? 1000 : undefined,
+    maxSockets: opts.maxSockets ?? 15,
+    maxTotalSockets: Infinity,
+    maxFreeSockets: keepAlive ? 256 : undefined,
+    scheduling: 'fifo',
+    // then spread the rest of the options
+    ...opts,
+    // we already set these to their defaults that we want
+    family,
+    keepAlive,
+    // our custom timeout options
+    timeouts: {
+      // the standard timeout option is mapped to our idle timeout
+      // and then deleted below
+      idle: opts.timeout ?? 0,
+      connection: 0,
+      response: 0,
+      transfer: 0,
+      ...opts.timeouts,
+    },
+    // get the dns options that go at the top level of socket connection
+    ...dns.getOptions({ family, ...opts.dns }),
+  }
+
+  // remove timeout since we already used it to set our own idle timeout
+  delete normalized.timeout
+
+  return normalized
+}
+
+const createKey = (obj) => {
+  let key = ''
+  const sorted = Object.entries(obj).sort((a, b) => a[0] - b[0])
+  for (let [k, v] of sorted) {
+    if (v == null) {
+      v = 'null'
+    } else if (v instanceof URL) {
+      v = v.toString()
+    } else if (typeof v === 'object') {
+      v = createKey(v)
+    }
+    key += `${k}:${v}:`
+  }
+  return key
+}
+
+const cacheOptions = ({ secureEndpoint, ...options }) => createKey({
+  secureEndpoint: !!secureEndpoint,
+  // socket connect options
+  family: options.family,
+  hints: options.hints,
+  localAddress: options.localAddress,
+  // tls specific connect options
+  strictSsl: secureEndpoint ? !!options.rejectUnauthorized : false,
+  ca: secureEndpoint ? options.ca : null,
+  cert: secureEndpoint ? options.cert : null,
+  key: secureEndpoint ? options.key : null,
+  // http agent options
+  keepAlive: options.keepAlive,
+  keepAliveMsecs: options.keepAliveMsecs,
+  maxSockets: options.maxSockets,
+  maxTotalSockets: options.maxTotalSockets,
+  maxFreeSockets: options.maxFreeSockets,
+  scheduling: options.scheduling,
+  // timeout options
+  timeouts: options.timeouts,
+  // proxy
+  proxy: options.proxy,
+})
+
+module.exports = {
+  normalizeOptions,
+  cacheOptions,
+}

my-app/node_modules/@npmcli/agent/lib/proxy.js

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+'use strict'
+
+const { HttpProxyAgent } = require('http-proxy-agent')
+const { HttpsProxyAgent } = require('https-proxy-agent')
+const { SocksProxyAgent } = require('socks-proxy-agent')
+const { LRUCache } = require('lru-cache')
+const { InvalidProxyProtocolError } = require('./errors.js')
+
+const PROXY_CACHE = new LRUCache({ max: 20 })
+
+const SOCKS_PROTOCOLS = new Set(SocksProxyAgent.protocols)
+
+const PROXY_ENV_KEYS = new Set(['https_proxy', 'http_proxy', 'proxy', 'no_proxy'])
+
+const PROXY_ENV = Object.entries(process.env).reduce((acc, [key, value]) => {
+  key = key.toLowerCase()
+  if (PROXY_ENV_KEYS.has(key)) {
+    acc[key] = value
+  }
+  return acc
+}, {})
+
+const getProxyAgent = (url) => {
+  url = new URL(url)
+
+  const protocol = url.protocol.slice(0, -1)
+  if (SOCKS_PROTOCOLS.has(protocol)) {
+    return SocksProxyAgent
+  }
+  if (protocol === 'https' || protocol === 'http') {
+    return [HttpProxyAgent, HttpsProxyAgent]
+  }
+
+  throw new InvalidProxyProtocolError(url)
+}
+
+const isNoProxy = (url, noProxy) => {
+  if (typeof noProxy === 'string') {
+    noProxy = noProxy.split(',').map((p) => p.trim()).filter(Boolean)
+  }
+
+  if (!noProxy || !noProxy.length) {
+    return false
+  }
+
+  const hostSegments = url.hostname.split('.').reverse()
+
+  return noProxy.some((no) => {
+    const noSegments = no.split('.').filter(Boolean).reverse()
+    if (!noSegments.length) {
+      return false
+    }
+
+    for (let i = 0; i < noSegments.length; i++) {
+      if (hostSegments[i] !== noSegments[i]) {
+        return false
+      }
+    }
+
+    return true
+  })
+}
+
+const getProxy = (url, { proxy, noProxy }) => {
+  url = new URL(url)
+
+  if (!proxy) {
+    proxy = url.protocol === 'https:'
+      ? PROXY_ENV.https_proxy
+      : PROXY_ENV.https_proxy || PROXY_ENV.http_proxy || PROXY_ENV.proxy
+  }
+
+  if (!noProxy) {
+    noProxy = PROXY_ENV.no_proxy
+  }
+
+  if (!proxy || isNoProxy(url, noProxy)) {
+    return null
+  }
+
+  return new URL(proxy)
+}
+
+module.exports = {
+  getProxyAgent,
+  getProxy,
+  proxyCache: PROXY_CACHE,
+}

my-app/node_modules/@npmcli/agent/node_modules/lru-cache/LICENSE

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+The ISC License
+
+Copyright (c) 2010-2023 Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

my-app/node_modules/@npmcli/agent/node_modules/lru-cache/dist/commonjs/index.d.ts

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+/**
+ * @module LRUCache
+ */
+declare const TYPE: unique symbol;
+export type PosInt = number & {
+    [TYPE]: 'Positive Integer';
+};
+export type Index = number & {
+    [TYPE]: 'LRUCache Index';
+};
+export type UintArray = Uint8Array | Uint16Array | Uint32Array;
+export type NumberArray = UintArray | number[];
+declare class ZeroArray extends Array<number> {
+    constructor(size: number);
+}
+export type { ZeroArray };
+export type { Stack };
+export type StackLike = Stack | Index[];
+declare class Stack {
+    #private;
+    heap: NumberArray;
+    length: number;
+    static create(max: number): StackLike;
+    constructor(max: number, HeapCls: {
+        new (n: number): NumberArray;
+    });
+    push(n: Index): void;
+    pop(): Index;
+}
+/**
+ * Promise representing an in-progress {@link LRUCache#fetch} call
+ */
+export type BackgroundFetch<V> = Promise<V | undefined> & {
+    __returned: BackgroundFetch<V> | undefined;
+    __abortController: AbortController;
+    __staleWhileFetching: V | undefined;
+};
+export type DisposeTask<K, V> = [
+    value: V,
+    key: K,
+    reason: LRUCache.DisposeReason
+];
+export declare namespace LRUCache {
+    /**
+     * An integer greater than 0, reflecting the calculated size of items
+     */
+    type Size = number;
+    /**
+     * Integer greater than 0, representing some number of milliseconds, or the
+     * time at which a TTL started counting from.
+     */
+    type Milliseconds = number;
+    /**
+     * An integer greater than 0, reflecting a number of items
+     */
+    type Count = number;
+    /**
+     * The reason why an item was removed from the cache, passed
+     * to the {@link Disposer} methods.
+     */
+    type DisposeReason = 'evict' | 'set' | 'delete';
+    /**
+     * A method called upon item removal, passed as the
+     * {@link OptionsBase.dispose} and/or
+     * {@link OptionsBase.disposeAfter} options.
+     */
+    type Disposer<K, V> = (value: V, key: K, reason: DisposeReason) => void;
+    /**
+     * A function that returns the effective calculated size
+     * of an entry in the cache.
+     */
+    type SizeCalculator<K, V> = (value: V, key: K) => Size;
+    /**
+     * Options provided to the
+     * {@link OptionsBase.fetchMethod} function.
+     */
+    interface FetcherOptions<K, V, FC = unknown> {
+        signal: AbortSignal;
+        options: FetcherFetchOptions<K, V, FC>;
+        /**
+         * Object provided in the {@link FetchOptions.context} option to
+         * {@link LRUCache#fetch}
+         */
+        context: FC;
+    }
+    /**
+     * Status object that may be passed to {@link LRUCache#fetch},
+     * {@link LRUCache#get}, {@link LRUCache#set}, and {@link LRUCache#has}.
+     */
+    interface Status<V> {
+        /**
+         * The status of a set() operation.
+         *
+         * - add: the item was not found in the cache, and was added
+         * - update: the item was in the cache, with the same value provided
+         * - replace: the item was in the cache, and replaced
+         * - miss: the item was not added to the cache for some reason
+         */
+        set?: 'add' | 'update' | 'replace' | 'miss';
+        /**
+         * the ttl stored for the item, or undefined if ttls are not used.
+         */
+        ttl?: Milliseconds;
+        /**
+         * the start time for the item, or undefined if ttls are not used.
+         */
+        start?: Milliseconds;
+        /**
+         * The timestamp used for TTL calculation
+         */
+        now?: Milliseconds;
+        /**
+         * the remaining ttl for the item, or undefined if ttls are not used.
+         */
+        remainingTTL?: Milliseconds;
+        /**
+         * The calculated size for the item, if sizes are used.
+         */
+        entrySize?: Size;
+        /**
+         * The total calculated size of the cache, if sizes are used.
+         */
+        totalCalculatedSize?: Size;
+        /**
+         * A flag indicating that the item was not stored, due to exceeding the
+         * {@link OptionsBase.maxEntrySize}
+         */
+        maxEntrySizeExceeded?: true;
+        /**
+         * The old value, specified in the case of `set:'update'` or
+         * `set:'replace'`
+         */
+        oldValue?: V;
+        /**
+         * The results of a {@link LRUCache#has} operation
+         *
+         * - hit: the item was found in the cache
+         * - stale: the item was found in the cache, but is stale
+         * - miss: the item was not found in the cache
+         */
+        has?: 'hit' | 'stale' | 'miss';
+        /**
+         * The status of a {@link LRUCache#fetch} operation.
+         * Note that this can change as the underlying fetch() moves through
+         * various states.
+         *
+         * - inflight: there is another fetch() for this key which is in process
+         * - get: there is no fetchMethod, so {@link LRUCache#get} was called.
+         * - miss: the item is not in cache, and will be fetched.
+         * - hit: the item is in the cache, and was resolved immediately.
+         * - stale: the item is in the cache, but stale.
+         * - refresh: the item is in the cache, and not stale, but
+         *   {@link FetchOptions.forceRefresh} was specified.
+         */
+        fetch?: 'get' | 'inflight' | 'miss' | 'hit' | 'stale' | 'refresh';
+        /**
+         * The {@link OptionsBase.fetchMethod} was called
+         */
+        fetchDispatched?: true;
+        /**
+         * The cached value was updated after a successful call to
+         * {@link OptionsBase.fetchMethod}
+         */
+        fetchUpdated?: true;
+        /**
+         * The reason for a fetch() rejection.  Either the error raised by the
+         * {@link OptionsBase.fetchMethod}, or the reason for an
+         * AbortSignal.
+         */
+        fetchError?: Error;
+        /**
+         * The fetch received an abort signal
+         */
+        fetchAborted?: true;
+        /**
+         * The abort signal received was ignored, and the fetch was allowed to
+         * continue.
+         */
+        fetchAbortIgnored?: true;
+        /**
+         * The fetchMethod promise resolved successfully
+         */
+        fetchResolved?: true;
+        /**
+         * The fetchMethod promise was rejected
+         */
+        fetchRejected?: true;
+        /**
+         * The status of a {@link LRUCache#get} operation.
+         *
+         * - fetching: The item is currently being fetched.  If a previous value
+         *   is present and allowed, that will be returned.
+         * - stale: The item is in the cache, and is stale.
+         * - hit: the item is in the cache
+         * - miss: the item is not in the cache
+         */
+        get?: 'stale' | 'hit' | 'miss';
+        /**
+         * A fetch or get operation returned a stale value.
+         */
+        returnedStale?: true;
+    }
+    /**
+     * options which override the options set in the LRUCache constructor
+     * when calling {@link LRUCache#fetch}.
+     *
+     * This is the union of {@link GetOptions} and {@link SetOptions}, plus
+     * {@link OptionsBase.noDeleteOnFetchRejection},
+     * {@link OptionsBase.allowStaleOnFetchRejection},
+     * {@link FetchOptions.forceRefresh}, and
+     * {@link FetcherOptions.context}
+     *
+     * Any of these may be modified in the {@link OptionsBase.fetchMethod}
+     * function, but the {@link GetOptions} fields will of course have no
+     * effect, as the {@link LRUCache#get} call already happened by the time
+     * the fetchMethod is called.
+     */
+    interface FetcherFetchOptions<K, V, FC = unknown> extends Pick<OptionsBase<K, V, FC>, 'allowStale' | 'updateAgeOnGet' | 'noDeleteOnStaleGet' | 'sizeCalculation' | 'ttl' | 'noDisposeOnSet' | 'noUpdateTTL' | 'noDeleteOnFetchRejection' | 'allowStaleOnFetchRejection' | 'ignoreFetchAbort' | 'allowStaleOnFetchAbort'> {
+        status?: Status<V>;
+        size?: Size;
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#fetch} method.
+     */
+    interface FetchOptions<K, V, FC> extends FetcherFetchOptions<K, V, FC> {
+        /**
+         * Set to true to force a re-load of the existing data, even if it
+         * is not yet stale.
+         */
+        forceRefresh?: boolean;
+        /**
+         * Context provided to the {@link OptionsBase.fetchMethod} as
+         * the {@link FetcherOptions.context} param.
+         *
+         * If the FC type is specified as unknown (the default),
+         * undefined or void, then this is optional.  Otherwise, it will
+         * be required.
+         */
+        context?: FC;
+        signal?: AbortSignal;
+        status?: Status<V>;
+    }
+    /**
+     * Options provided to {@link LRUCache#fetch} when the FC type is something
+     * other than `unknown`, `undefined`, or `void`
+     */
+    interface FetchOptionsWithContext<K, V, FC> extends FetchOptions<K, V, FC> {
+        context: FC;
+    }
+    /**
+     * Options provided to {@link LRUCache#fetch} when the FC type is
+     * `undefined` or `void`
+     */
+    interface FetchOptionsNoContext<K, V> extends FetchOptions<K, V, undefined> {
+        context?: undefined;
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#has} method.
+     */
+    interface HasOptions<K, V, FC> extends Pick<OptionsBase<K, V, FC>, 'updateAgeOnHas'> {
+        status?: Status<V>;
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#get} method.
+     */
+    interface GetOptions<K, V, FC> extends Pick<OptionsBase<K, V, FC>, 'allowStale' | 'updateAgeOnGet' | 'noDeleteOnStaleGet'> {
+        status?: Status<V>;
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#peek} method.
+     */
+    interface PeekOptions<K, V, FC> extends Pick<OptionsBase<K, V, FC>, 'allowStale'> {
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#set} method.
+     */
+    interface SetOptions<K, V, FC> extends Pick<OptionsBase<K, V, FC>, 'sizeCalculation' | 'ttl' | 'noDisposeOnSet' | 'noUpdateTTL'> {
+        /**
+         * If size tracking is enabled, then setting an explicit size
+         * in the {@link LRUCache#set} call will prevent calling the
+         * {@link OptionsBase.sizeCalculation} function.
+         */
+        size?: Size;
+        /**
+         * If TTL tracking is enabled, then setting an explicit start
+         * time in the {@link LRUCache#set} call will override the
+         * default time from `performance.now()` or `Date.now()`.
+         *
+         * Note that it must be a valid value for whichever time-tracking
+         * method is in use.
+         */
+        start?: Milliseconds;
+        status?: Status<V>;
+    }
+    /**
+     * The type signature for the {@link OptionsBase.fetchMethod} option.
+     */
+    type Fetcher<K, V, FC = unknown> = (key: K, staleValue: V | undefined, options: FetcherOptions<K, V, FC>) => Promise<V | undefined | void> | V | undefined | void;
+    /**
+     * Options which may be passed to the {@link LRUCache} constructor.
+     *
+     * Most of these may be overridden in the various options that use
+     * them.
+     *
+     * Despite all being technically optional, the constructor requires that
+     * a cache is at minimum limited by one or more of {@link OptionsBase.max},
+     * {@link OptionsBase.ttl}, or {@link OptionsBase.maxSize}.
+     *
+     * If {@link OptionsBase.ttl} is used alone, then it is strongly advised
+     * (and in fact required by the type definitions here) that the cache
+     * also set {@link OptionsBase.ttlAutopurge}, to prevent potentially
+     * unbounded storage.
+     */
+    interface OptionsBase<K, V, FC> {
+        /**
+         * The maximum number of items to store in the cache before evicting
+         * old entries. This is read-only on the {@link LRUCache} instance,
+         * and may not be overridden.
+         *
+         * If set, then storage space will be pre-allocated at construction
+         * time, and the cache will perform significantly faster.
+         *
+         * Note that significantly fewer items may be stored, if
+         * {@link OptionsBase.maxSize} and/or {@link OptionsBase.ttl} are also
+         * set.
+         */
+        max?: Count;
+        /**
+         * Max time in milliseconds for items to live in cache before they are
+         * considered stale.  Note that stale items are NOT preemptively removed
+         * by default, and MAY live in the cache long after they have expired.
+         *
+         * Also, as this cache is optimized for LRU/MRU operations, some of
+         * the staleness/TTL checks will reduce performance, as they will incur
+         * overhead by deleting items.
+         *
+         * Must be an integer number of ms. If set to 0, this indicates "no TTL"
+         *
+         * @default 0
+         */
+        ttl?: Milliseconds;
+        /**
+         * Minimum amount of time in ms in which to check for staleness.
+         * Defaults to 1, which means that the current time is checked
+         * at most once per millisecond.
+         *
+         * Set to 0 to check the current time every time staleness is tested.
+         * (This reduces performance, and is theoretically unnecessary.)
+         *
+         * Setting this to a higher value will improve performance somewhat
+         * while using ttl tracking, albeit at the expense of keeping stale
+         * items around a bit longer than their TTLs would indicate.
+         *
+         * @default 1
+         */
+        ttlResolution?: Milliseconds;
+        /**
+         * Preemptively remove stale items from the cache.
+         * Note that this may significantly degrade performance,
+         * especially if the cache is storing a large number of items.
+         * It is almost always best to just leave the stale items in
+         * the cache, and let them fall out as new items are added.
+         *
+         * Note that this means that {@link OptionsBase.allowStale} is a bit
+         * pointless, as stale items will be deleted almost as soon as they
+         * expire.
+         *
+         * @default false
+         */
+        ttlAutopurge?: boolean;
+        /**
+         * Update the age of items on {@link LRUCache#get}, renewing their TTL
+         *
+         * Has no effect if {@link OptionsBase.ttl} is not set.
+         *
+         * @default false
+         */
+        updateAgeOnGet?: boolean;
+        /**
+         * Update the age of items on {@link LRUCache#has}, renewing their TTL
+         *
+         * Has no effect if {@link OptionsBase.ttl} is not set.
+         *
+         * @default false
+         */
+        updateAgeOnHas?: boolean;
+        /**
+         * Allow {@link LRUCache#get} and {@link LRUCache#fetch} calls to return
+         * stale data, if available.
+         */
+        allowStale?: boolean;
+        /**
+         * Function that is called on items when they are dropped from the cache.
+         * This can be handy if you want to close file descriptors or do other
+         * cleanup tasks when items are no longer accessible. Called with `key,
+         * value`.  It's called before actually removing the item from the
+         * internal cache, so it is *NOT* safe to re-add them.
+         *
+         * Use {@link OptionsBase.disposeAfter} if you wish to dispose items after
+         * they have been full removed, when it is safe to add them back to the
+         * cache.
+         */
+        dispose?: Disposer<K, V>;
+        /**
+         * The same as {@link OptionsBase.dispose}, but called *after* the entry
+         * is completely removed and the cache is once again in a clean state.
+         * It is safe to add an item right back into the cache at this point.
+         * However, note that it is *very* easy to inadvertently create infinite
+         * recursion this way.
+         */
+        disposeAfter?: Disposer<K, V>;
+        /**
+         * Set to true to suppress calling the
+         * {@link OptionsBase.dispose} function if the entry key is
+         * still accessible within the cache.
+         * This may be overridden by passing an options object to
+         * {@link LRUCache#set}.
+         */
+        noDisposeOnSet?: boolean;
+        /**
+         * Boolean flag to tell the cache to not update the TTL when
+         * setting a new value for an existing key (ie, when updating a value
+         * rather than inserting a new value).  Note that the TTL value is
+         * _always_ set (if provided) when adding a new entry into the cache.
+         *
+         * Has no effect if a {@link OptionsBase.ttl} is not set.
+         */
+        noUpdateTTL?: boolean;
+        /**
+         * If you wish to track item size, you must provide a maxSize
+         * note that we still will only keep up to max *actual items*,
+         * if max is set, so size tracking may cause fewer than max items
+         * to be stored.  At the extreme, a single item of maxSize size
+         * will cause everything else in the cache to be dropped when it
+         * is added.  Use with caution!
+         *
+         * Note also that size tracking can negatively impact performance,
+         * though for most cases, only minimally.
+         */
+        maxSize?: Size;
+        /**
+         * The maximum allowed size for any single item in the cache.
+         *
+         * If a larger item is passed to {@link LRUCache#set} or returned by a
+         * {@link OptionsBase.fetchMethod}, then it will not be stored in the
+         * cache.
+         */
+        maxEntrySize?: Size;
+        /**
+         * A function that returns a number indicating the item's size.
+         *
+         * If not provided, and {@link OptionsBase.maxSize} or
+         * {@link OptionsBase.maxEntrySize} are set, then all
+         * {@link LRUCache#set} calls **must** provide an explicit
+         * {@link SetOptions.size} or sizeCalculation param.
+         */
+        sizeCalculation?: SizeCalculator<K, V>;
+        /**
+         * Method that provides the implementation for {@link LRUCache#fetch}
+         */
+        fetchMethod?: Fetcher<K, V, FC>;
+        /**
+         * Set to true to suppress the deletion of stale data when a
+         * {@link OptionsBase.fetchMethod} returns a rejected promise.
+         */
+        noDeleteOnFetchRejection?: boolean;
+        /**
+         * Do not delete stale items when they are retrieved with
+         * {@link LRUCache#get}.
+         *
+         * Note that the `get` return value will still be `undefined`
+         * unless {@link OptionsBase.allowStale} is true.
+         */
+        noDeleteOnStaleGet?: boolean;
+        /**
+         * Set to true to allow returning stale data when a
+         * {@link OptionsBase.fetchMethod} throws an error or returns a rejected
+         * promise.
+         *
+         * This differs from using {@link OptionsBase.allowStale} in that stale
+         * data will ONLY be returned in the case that the
+         * {@link LRUCache#fetch} fails, not any other times.
+         */
+        allowStaleOnFetchRejection?: boolean;
+        /**
+         * Set to true to return a stale value from the cache when the
+         * `AbortSignal` passed to the {@link OptionsBase.fetchMethod} dispatches an `'abort'`
+         * event, whether user-triggered, or due to internal cache behavior.
+         *
+         * Unless {@link OptionsBase.ignoreFetchAbort} is also set, the underlying
+         * {@link OptionsBase.fetchMethod} will still be considered canceled, and
+         * any value it returns will be ignored and not cached.
+         *
+         * Caveat: since fetches are aborted when a new value is explicitly
+         * set in the cache, this can lead to fetch returning a stale value,
+         * since that was the fallback value _at the moment the `fetch()` was
+         * initiated_, even though the new updated value is now present in
+         * the cache.
+         *
+         * For example:
+         *
+         * ```ts
+         * const cache = new LRUCache<string, any>({
+         *   ttl: 100,
+         *   fetchMethod: async (url, oldValue, { signal }) =>  {
+         *     const res = await fetch(url, { signal })
+         *     return await res.json()
+         *   }
+         * })
+         * cache.set('https://example.com/', { some: 'data' })
+         * // 100ms go by...
+         * const result = cache.fetch('https://example.com/')
+         * cache.set('https://example.com/', { other: 'thing' })
+         * console.log(await result) // { some: 'data' }
+         * console.log(cache.get('https://example.com/')) // { other: 'thing' }
+         * ```
+         */
+        allowStaleOnFetchAbort?: boolean;
+        /**
+         * Set to true to ignore the `abort` event emitted by the `AbortSignal`
+         * object passed to {@link OptionsBase.fetchMethod}, and still cache the
+         * resulting resolution value, as long as it is not `undefined`.
+         *
+         * When used on its own, this means aborted {@link LRUCache#fetch} calls are not
+         * immediately resolved or rejected when they are aborted, and instead
+         * take the full time to await.
+         *
+         * When used with {@link OptionsBase.allowStaleOnFetchAbort}, aborted
+         * {@link LRUCache#fetch} calls will resolve immediately to their stale
+         * cached value or `undefined`, and will continue to process and eventually
+         * update the cache when they resolve, as long as the resulting value is
+         * not `undefined`, thus supporting a "return stale on timeout while
+         * refreshing" mechanism by passing `AbortSignal.timeout(n)` as the signal.
+         *
+         * **Note**: regardless of this setting, an `abort` event _is still
+         * emitted on the `AbortSignal` object_, so may result in invalid results
+         * when passed to other underlying APIs that use AbortSignals.
+         *
+         * This may be overridden in the {@link OptionsBase.fetchMethod} or the
+         * call to {@link LRUCache#fetch}.
+         */
+        ignoreFetchAbort?: boolean;
+    }
+    interface OptionsMaxLimit<K, V, FC> extends OptionsBase<K, V, FC> {
+        max: Count;
+    }
+    interface OptionsTTLLimit<K, V, FC> extends OptionsBase<K, V, FC> {
+        ttl: Milliseconds;
+        ttlAutopurge: boolean;
+    }
+    interface OptionsSizeLimit<K, V, FC> extends OptionsBase<K, V, FC> {
+        maxSize: Size;
+    }
+    /**
+     * The valid safe options for the {@link LRUCache} constructor
+     */
+    type Options<K, V, FC> = OptionsMaxLimit<K, V, FC> | OptionsSizeLimit<K, V, FC> | OptionsTTLLimit<K, V, FC>;
+    /**
+     * Entry objects used by {@link LRUCache#load} and {@link LRUCache#dump},
+     * and returned by {@link LRUCache#info}.
+     */
+    interface Entry<V> {
+        value: V;
+        ttl?: Milliseconds;
+        size?: Size;
+        start?: Milliseconds;
+    }
+}
+/**
+ * Default export, the thing you're using this module to get.
+ *
+ * All properties from the options object (with the exception of
+ * {@link OptionsBase.max} and {@link OptionsBase.maxSize}) are added as
+ * normal public members. (`max` and `maxBase` are read-only getters.)
+ * Changing any of these will alter the defaults for subsequent method calls,
+ * but is otherwise safe.
+ */
+export declare class LRUCache<K extends {}, V extends {}, FC = unknown> implements Map<K, V> {
+    #private;
+    /**
+     * {@link LRUCache.OptionsBase.ttl}
+     */
+    ttl: LRUCache.Milliseconds;
+    /**
+     * {@link LRUCache.OptionsBase.ttlResolution}
+     */
+    ttlResolution: LRUCache.Milliseconds;
+    /**
+     * {@link LRUCache.OptionsBase.ttlAutopurge}
+     */
+    ttlAutopurge: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.updateAgeOnGet}
+     */
+    updateAgeOnGet: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.updateAgeOnHas}
+     */
+    updateAgeOnHas: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.allowStale}
+     */
+    allowStale: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.noDisposeOnSet}
+     */
+    noDisposeOnSet: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.noUpdateTTL}
+     */
+    noUpdateTTL: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.maxEntrySize}
+     */
+    maxEntrySize: LRUCache.Size;
+    /**
+     * {@link LRUCache.OptionsBase.sizeCalculation}
+     */
+    sizeCalculation?: LRUCache.SizeCalculator<K, V>;
+    /**
+     * {@link LRUCache.OptionsBase.noDeleteOnFetchRejection}
+     */
+    noDeleteOnFetchRejection: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.noDeleteOnStaleGet}
+     */
+    noDeleteOnStaleGet: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.allowStaleOnFetchAbort}
+     */
+    allowStaleOnFetchAbort: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.allowStaleOnFetchRejection}
+     */
+    allowStaleOnFetchRejection: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.ignoreFetchAbort}
+     */
+    ignoreFetchAbort: boolean;
+    /**
+     * Do not call this method unless you need to inspect the
+     * inner workings of the cache.  If anything returned by this
+     * object is modified in any way, strange breakage may occur.
+     *
+     * These fields are private for a reason!
+     *
+     * @internal
+     */
+    static unsafeExposeInternals<K extends {}, V extends {}, FC extends unknown = unknown>(c: LRUCache<K, V, FC>): {
+        starts: ZeroArray | undefined;
+        ttls: ZeroArray | undefined;
+        sizes: ZeroArray | undefined;
+        keyMap: Map<K, number>;
+        keyList: (K | undefined)[];
+        valList: (V | BackgroundFetch<V> | undefined)[];
+        next: NumberArray;
+        prev: NumberArray;
+        readonly head: Index;
+        readonly tail: Index;
+        free: StackLike;
+        isBackgroundFetch: (p: any) => boolean;
+        backgroundFetch: (k: K, index: number | undefined, options: LRUCache.FetchOptions<K, V, FC>, context: any) => BackgroundFetch<V>;
+        moveToTail: (index: number) => void;
+        indexes: (options?: {
+            allowStale: boolean;
+        }) => Generator<Index, void, unknown>;
+        rindexes: (options?: {
+            allowStale: boolean;
+        }) => Generator<Index, void, unknown>;
+        isStale: (index: number | undefined) => boolean;
+    };
+    /**
+     * {@link LRUCache.OptionsBase.max} (read-only)
+     */
+    get max(): LRUCache.Count;
+    /**
+     * {@link LRUCache.OptionsBase.maxSize} (read-only)
+     */
+    get maxSize(): LRUCache.Count;
+    /**
+     * The total computed size of items in the cache (read-only)
+     */
+    get calculatedSize(): LRUCache.Size;
+    /**
+     * The number of items stored in the cache (read-only)
+     */
+    get size(): LRUCache.Count;
+    /**
+     * {@link LRUCache.OptionsBase.fetchMethod} (read-only)
+     */
+    get fetchMethod(): LRUCache.Fetcher<K, V, FC> | undefined;
+    /**
+     * {@link LRUCache.OptionsBase.dispose} (read-only)
+     */
+    get dispose(): LRUCache.Disposer<K, V> | undefined;
+    /**
+     * {@link LRUCache.OptionsBase.disposeAfter} (read-only)
+     */
+    get disposeAfter(): LRUCache.Disposer<K, V> | undefined;
+    constructor(options: LRUCache.Options<K, V, FC> | LRUCache<K, V, FC>);
+    /**
+     * Return the remaining TTL time for a given entry key
+     */
+    getRemainingTTL(key: K): number;
+    /**
+     * Return a generator yielding `[key, value]` pairs,
+     * in order from most recently used to least recently used.
+     */
+    entries(): Generator<[K, V], void, unknown>;
+    /**
+     * Inverse order version of {@link LRUCache.entries}
+     *
+     * Return a generator yielding `[key, value]` pairs,
+     * in order from least recently used to most recently used.
+     */
+    rentries(): Generator<(K | V | BackgroundFetch<V> | undefined)[], void, unknown>;
+    /**
+     * Return a generator yielding the keys in the cache,
+     * in order from most recently used to least recently used.
+     */
+    keys(): Generator<K, void, unknown>;
+    /**
+     * Inverse order version of {@link LRUCache.keys}
+     *
+     * Return a generator yielding the keys in the cache,
+     * in order from least recently used to most recently used.
+     */
+    rkeys(): Generator<K, void, unknown>;
+    /**
+     * Return a generator yielding the values in the cache,
+     * in order from most recently used to least recently used.
+     */
+    values(): Generator<V, void, unknown>;
+    /**
+     * Inverse order version of {@link LRUCache.values}
+     *
+     * Return a generator yielding the values in the cache,
+     * in order from least recently used to most recently used.
+     */
+    rvalues(): Generator<V | BackgroundFetch<V> | undefined, void, unknown>;
+    /**
+     * Iterating over the cache itself yields the same results as
+     * {@link LRUCache.entries}
+     */
+    [Symbol.iterator](): Generator<[K, V], void, unknown>;
+    /**
+     * A String value that is used in the creation of the default string description of an object.
+     * Called by the built-in method Object.prototype.toString.
+     */
+    [Symbol.toStringTag]: string;
+    /**
+     * Find a value for which the supplied fn method returns a truthy value,
+     * similar to Array.find().  fn is called as fn(value, key, cache).
+     */
+    find(fn: (v: V, k: K, self: LRUCache<K, V, FC>) => boolean, getOptions?: LRUCache.GetOptions<K, V, FC>): V | undefined;
+    /**
+     * Call the supplied function on each item in the cache, in order from
+     * most recently used to least recently used.  fn is called as
+     * fn(value, key, cache).  Does not update age or recenty of use.
+     * Does not iterate over stale values.
+     */
+    forEach(fn: (v: V, k: K, self: LRUCache<K, V, FC>) => any, thisp?: any): void;
+    /**
+     * The same as {@link LRUCache.forEach} but items are iterated over in
+     * reverse order.  (ie, less recently used items are iterated over first.)
+     */
+    rforEach(fn: (v: V, k: K, self: LRUCache<K, V, FC>) => any, thisp?: any): void;
+    /**
+     * Delete any stale entries. Returns true if anything was removed,
+     * false otherwise.
+     */
+    purgeStale(): boolean;
+    /**
+     * Get the extended info about a given entry, to get its value, size, and
+     * TTL info simultaneously. Like {@link LRUCache#dump}, but just for a
+     * single key. Always returns stale values, if their info is found in the
+     * cache, so be sure to check for expired TTLs if relevant.
+     */
+    info(key: K): LRUCache.Entry<V> | undefined;
+    /**
+     * Return an array of [key, {@link LRUCache.Entry}] tuples which can be
+     * passed to cache.load()
+     */
+    dump(): [K, LRUCache.Entry<V>][];
+    /**
+     * Reset the cache and load in the items in entries in the order listed.
+     * Note that the shape of the resulting cache may be different if the
+     * same options are not used in both caches.
+     */
+    load(arr: [K, LRUCache.Entry<V>][]): void;
+    /**
+     * Add a value to the cache.
+     *
+     * Note: if `undefined` is specified as a value, this is an alias for
+     * {@link LRUCache#delete}
+     */
+    set(k: K, v: V | BackgroundFetch<V> | undefined, setOptions?: LRUCache.SetOptions<K, V, FC>): this;
+    /**
+     * Evict the least recently used item, returning its value or
+     * `undefined` if cache is empty.
+     */
+    pop(): V | undefined;
+    /**
+     * Check if a key is in the cache, without updating the recency of use.
+     * Will return false if the item is stale, even though it is technically
+     * in the cache.
+     *
+     * Will not update item age unless
+     * {@link LRUCache.OptionsBase.updateAgeOnHas} is set.
+     */
+    has(k: K, hasOptions?: LRUCache.HasOptions<K, V, FC>): boolean;
+    /**
+     * Like {@link LRUCache#get} but doesn't update recency or delete stale
+     * items.
+     *
+     * Returns `undefined` if the item is stale, unless
+     * {@link LRUCache.OptionsBase.allowStale} is set.
+     */
+    peek(k: K, peekOptions?: LRUCache.PeekOptions<K, V, FC>): V | undefined;
+    /**
+     * Make an asynchronous cached fetch using the
+     * {@link LRUCache.OptionsBase.fetchMethod} function.
+     *
+     * If multiple fetches for the same key are issued, then they will all be
+     * coalesced into a single call to fetchMethod.
+     *
+     * Note that this means that handling options such as
+     * {@link LRUCache.OptionsBase.allowStaleOnFetchAbort},
+     * {@link LRUCache.FetchOptions.signal},
+     * and {@link LRUCache.OptionsBase.allowStaleOnFetchRejection} will be
+     * determined by the FIRST fetch() call for a given key.
+     *
+     * This is a known (fixable) shortcoming which will be addresed on when
+     * someone complains about it, as the fix would involve added complexity and
+     * may not be worth the costs for this edge case.
+     */
+    fetch(k: K, fetchOptions: unknown extends FC ? LRUCache.FetchOptions<K, V, FC> : FC extends undefined | void ? LRUCache.FetchOptionsNoContext<K, V> : LRUCache.FetchOptionsWithContext<K, V, FC>): Promise<undefined | V>;
+    fetch(k: unknown extends FC ? K : FC extends undefined | void ? K : never, fetchOptions?: unknown extends FC ? LRUCache.FetchOptions<K, V, FC> : FC extends undefined | void ? LRUCache.FetchOptionsNoContext<K, V> : never): Promise<undefined | V>;
+    /**
+     * Return a value from the cache. Will update the recency of the cache
+     * entry found.
+     *
+     * If the key is not found, get() will return `undefined`.
+     */
+    get(k: K, getOptions?: LRUCache.GetOptions<K, V, FC>): V | undefined;
+    /**
+     * Deletes a key out of the cache.
+     * Returns true if the key was deleted, false otherwise.
+     */
+    delete(k: K): boolean;
+    /**
+     * Clear the cache entirely, throwing away all values.
+     */
+    clear(): void;
+}
+//# sourceMappingURL=index.d.ts.map

my-app/node_modules/@npmcli/agent/node_modules/lru-cache/dist/commonjs/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "commonjs"
+}

my-app/node_modules/@npmcli/agent/node_modules/lru-cache/dist/esm/index.d.ts

@@ -0,0 +1,856 @@
+/**
+ * @module LRUCache
+ */
+declare const TYPE: unique symbol;
+export type PosInt = number & {
+    [TYPE]: 'Positive Integer';
+};
+export type Index = number & {
+    [TYPE]: 'LRUCache Index';
+};
+export type UintArray = Uint8Array | Uint16Array | Uint32Array;
+export type NumberArray = UintArray | number[];
+declare class ZeroArray extends Array<number> {
+    constructor(size: number);
+}
+export type { ZeroArray };
+export type { Stack };
+export type StackLike = Stack | Index[];
+declare class Stack {
+    #private;
+    heap: NumberArray;
+    length: number;
+    static create(max: number): StackLike;
+    constructor(max: number, HeapCls: {
+        new (n: number): NumberArray;
+    });
+    push(n: Index): void;
+    pop(): Index;
+}
+/**
+ * Promise representing an in-progress {@link LRUCache#fetch} call
+ */
+export type BackgroundFetch<V> = Promise<V | undefined> & {
+    __returned: BackgroundFetch<V> | undefined;
+    __abortController: AbortController;
+    __staleWhileFetching: V | undefined;
+};
+export type DisposeTask<K, V> = [
+    value: V,
+    key: K,
+    reason: LRUCache.DisposeReason
+];
+export declare namespace LRUCache {
+    /**
+     * An integer greater than 0, reflecting the calculated size of items
+     */
+    type Size = number;
+    /**
+     * Integer greater than 0, representing some number of milliseconds, or the
+     * time at which a TTL started counting from.
+     */
+    type Milliseconds = number;
+    /**
+     * An integer greater than 0, reflecting a number of items
+     */
+    type Count = number;
+    /**
+     * The reason why an item was removed from the cache, passed
+     * to the {@link Disposer} methods.
+     */
+    type DisposeReason = 'evict' | 'set' | 'delete';
+    /**
+     * A method called upon item removal, passed as the
+     * {@link OptionsBase.dispose} and/or
+     * {@link OptionsBase.disposeAfter} options.
+     */
+    type Disposer<K, V> = (value: V, key: K, reason: DisposeReason) => void;
+    /**
+     * A function that returns the effective calculated size
+     * of an entry in the cache.
+     */
+    type SizeCalculator<K, V> = (value: V, key: K) => Size;
+    /**
+     * Options provided to the
+     * {@link OptionsBase.fetchMethod} function.
+     */
+    interface FetcherOptions<K, V, FC = unknown> {
+        signal: AbortSignal;
+        options: FetcherFetchOptions<K, V, FC>;
+        /**
+         * Object provided in the {@link FetchOptions.context} option to
+         * {@link LRUCache#fetch}
+         */
+        context: FC;
+    }
+    /**
+     * Status object that may be passed to {@link LRUCache#fetch},
+     * {@link LRUCache#get}, {@link LRUCache#set}, and {@link LRUCache#has}.
+     */
+    interface Status<V> {
+        /**
+         * The status of a set() operation.
+         *
+         * - add: the item was not found in the cache, and was added
+         * - update: the item was in the cache, with the same value provided
+         * - replace: the item was in the cache, and replaced
+         * - miss: the item was not added to the cache for some reason
+         */
+        set?: 'add' | 'update' | 'replace' | 'miss';
+        /**
+         * the ttl stored for the item, or undefined if ttls are not used.
+         */
+        ttl?: Milliseconds;
+        /**
+         * the start time for the item, or undefined if ttls are not used.
+         */
+        start?: Milliseconds;
+        /**
+         * The timestamp used for TTL calculation
+         */
+        now?: Milliseconds;
+        /**
+         * the remaining ttl for the item, or undefined if ttls are not used.
+         */
+        remainingTTL?: Milliseconds;
+        /**
+         * The calculated size for the item, if sizes are used.
+         */
+        entrySize?: Size;
+        /**
+         * The total calculated size of the cache, if sizes are used.
+         */
+        totalCalculatedSize?: Size;
+        /**
+         * A flag indicating that the item was not stored, due to exceeding the
+         * {@link OptionsBase.maxEntrySize}
+         */
+        maxEntrySizeExceeded?: true;
+        /**
+         * The old value, specified in the case of `set:'update'` or
+         * `set:'replace'`
+         */
+        oldValue?: V;
+        /**
+         * The results of a {@link LRUCache#has} operation
+         *
+         * - hit: the item was found in the cache
+         * - stale: the item was found in the cache, but is stale
+         * - miss: the item was not found in the cache
+         */
+        has?: 'hit' | 'stale' | 'miss';
+        /**
+         * The status of a {@link LRUCache#fetch} operation.
+         * Note that this can change as the underlying fetch() moves through
+         * various states.
+         *
+         * - inflight: there is another fetch() for this key which is in process
+         * - get: there is no fetchMethod, so {@link LRUCache#get} was called.
+         * - miss: the item is not in cache, and will be fetched.
+         * - hit: the item is in the cache, and was resolved immediately.
+         * - stale: the item is in the cache, but stale.
+         * - refresh: the item is in the cache, and not stale, but
+         *   {@link FetchOptions.forceRefresh} was specified.
+         */
+        fetch?: 'get' | 'inflight' | 'miss' | 'hit' | 'stale' | 'refresh';
+        /**
+         * The {@link OptionsBase.fetchMethod} was called
+         */
+        fetchDispatched?: true;
+        /**
+         * The cached value was updated after a successful call to
+         * {@link OptionsBase.fetchMethod}
+         */
+        fetchUpdated?: true;
+        /**
+         * The reason for a fetch() rejection.  Either the error raised by the
+         * {@link OptionsBase.fetchMethod}, or the reason for an
+         * AbortSignal.
+         */
+        fetchError?: Error;
+        /**
+         * The fetch received an abort signal
+         */
+        fetchAborted?: true;
+        /**
+         * The abort signal received was ignored, and the fetch was allowed to
+         * continue.
+         */
+        fetchAbortIgnored?: true;
+        /**
+         * The fetchMethod promise resolved successfully
+         */
+        fetchResolved?: true;
+        /**
+         * The fetchMethod promise was rejected
+         */
+        fetchRejected?: true;
+        /**
+         * The status of a {@link LRUCache#get} operation.
+         *
+         * - fetching: The item is currently being fetched.  If a previous value
+         *   is present and allowed, that will be returned.
+         * - stale: The item is in the cache, and is stale.
+         * - hit: the item is in the cache
+         * - miss: the item is not in the cache
+         */
+        get?: 'stale' | 'hit' | 'miss';
+        /**
+         * A fetch or get operation returned a stale value.
+         */
+        returnedStale?: true;
+    }
+    /**
+     * options which override the options set in the LRUCache constructor
+     * when calling {@link LRUCache#fetch}.
+     *
+     * This is the union of {@link GetOptions} and {@link SetOptions}, plus
+     * {@link OptionsBase.noDeleteOnFetchRejection},
+     * {@link OptionsBase.allowStaleOnFetchRejection},
+     * {@link FetchOptions.forceRefresh}, and
+     * {@link FetcherOptions.context}
+     *
+     * Any of these may be modified in the {@link OptionsBase.fetchMethod}
+     * function, but the {@link GetOptions} fields will of course have no
+     * effect, as the {@link LRUCache#get} call already happened by the time
+     * the fetchMethod is called.
+     */
+    interface FetcherFetchOptions<K, V, FC = unknown> extends Pick<OptionsBase<K, V, FC>, 'allowStale' | 'updateAgeOnGet' | 'noDeleteOnStaleGet' | 'sizeCalculation' | 'ttl' | 'noDisposeOnSet' | 'noUpdateTTL' | 'noDeleteOnFetchRejection' | 'allowStaleOnFetchRejection' | 'ignoreFetchAbort' | 'allowStaleOnFetchAbort'> {
+        status?: Status<V>;
+        size?: Size;
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#fetch} method.
+     */
+    interface FetchOptions<K, V, FC> extends FetcherFetchOptions<K, V, FC> {
+        /**
+         * Set to true to force a re-load of the existing data, even if it
+         * is not yet stale.
+         */
+        forceRefresh?: boolean;
+        /**
+         * Context provided to the {@link OptionsBase.fetchMethod} as
+         * the {@link FetcherOptions.context} param.
+         *
+         * If the FC type is specified as unknown (the default),
+         * undefined or void, then this is optional.  Otherwise, it will
+         * be required.
+         */
+        context?: FC;
+        signal?: AbortSignal;
+        status?: Status<V>;
+    }
+    /**
+     * Options provided to {@link LRUCache#fetch} when the FC type is something
+     * other than `unknown`, `undefined`, or `void`
+     */
+    interface FetchOptionsWithContext<K, V, FC> extends FetchOptions<K, V, FC> {
+        context: FC;
+    }
+    /**
+     * Options provided to {@link LRUCache#fetch} when the FC type is
+     * `undefined` or `void`
+     */
+    interface FetchOptionsNoContext<K, V> extends FetchOptions<K, V, undefined> {
+        context?: undefined;
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#has} method.
+     */
+    interface HasOptions<K, V, FC> extends Pick<OptionsBase<K, V, FC>, 'updateAgeOnHas'> {
+        status?: Status<V>;
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#get} method.
+     */
+    interface GetOptions<K, V, FC> extends Pick<OptionsBase<K, V, FC>, 'allowStale' | 'updateAgeOnGet' | 'noDeleteOnStaleGet'> {
+        status?: Status<V>;
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#peek} method.
+     */
+    interface PeekOptions<K, V, FC> extends Pick<OptionsBase<K, V, FC>, 'allowStale'> {
+    }
+    /**
+     * Options that may be passed to the {@link LRUCache#set} method.
+     */
+    interface SetOptions<K, V, FC> extends Pick<OptionsBase<K, V, FC>, 'sizeCalculation' | 'ttl' | 'noDisposeOnSet' | 'noUpdateTTL'> {
+        /**
+         * If size tracking is enabled, then setting an explicit size
+         * in the {@link LRUCache#set} call will prevent calling the
+         * {@link OptionsBase.sizeCalculation} function.
+         */
+        size?: Size;
+        /**
+         * If TTL tracking is enabled, then setting an explicit start
+         * time in the {@link LRUCache#set} call will override the
+         * default time from `performance.now()` or `Date.now()`.
+         *
+         * Note that it must be a valid value for whichever time-tracking
+         * method is in use.
+         */
+        start?: Milliseconds;
+        status?: Status<V>;
+    }
+    /**
+     * The type signature for the {@link OptionsBase.fetchMethod} option.
+     */
+    type Fetcher<K, V, FC = unknown> = (key: K, staleValue: V | undefined, options: FetcherOptions<K, V, FC>) => Promise<V | undefined | void> | V | undefined | void;
+    /**
+     * Options which may be passed to the {@link LRUCache} constructor.
+     *
+     * Most of these may be overridden in the various options that use
+     * them.
+     *
+     * Despite all being technically optional, the constructor requires that
+     * a cache is at minimum limited by one or more of {@link OptionsBase.max},
+     * {@link OptionsBase.ttl}, or {@link OptionsBase.maxSize}.
+     *
+     * If {@link OptionsBase.ttl} is used alone, then it is strongly advised
+     * (and in fact required by the type definitions here) that the cache
+     * also set {@link OptionsBase.ttlAutopurge}, to prevent potentially
+     * unbounded storage.
+     */
+    interface OptionsBase<K, V, FC> {
+        /**
+         * The maximum number of items to store in the cache before evicting
+         * old entries. This is read-only on the {@link LRUCache} instance,
+         * and may not be overridden.
+         *
+         * If set, then storage space will be pre-allocated at construction
+         * time, and the cache will perform significantly faster.
+         *
+         * Note that significantly fewer items may be stored, if
+         * {@link OptionsBase.maxSize} and/or {@link OptionsBase.ttl} are also
+         * set.
+         */
+        max?: Count;
+        /**
+         * Max time in milliseconds for items to live in cache before they are
+         * considered stale.  Note that stale items are NOT preemptively removed
+         * by default, and MAY live in the cache long after they have expired.
+         *
+         * Also, as this cache is optimized for LRU/MRU operations, some of
+         * the staleness/TTL checks will reduce performance, as they will incur
+         * overhead by deleting items.
+         *
+         * Must be an integer number of ms. If set to 0, this indicates "no TTL"
+         *
+         * @default 0
+         */
+        ttl?: Milliseconds;
+        /**
+         * Minimum amount of time in ms in which to check for staleness.
+         * Defaults to 1, which means that the current time is checked
+         * at most once per millisecond.
+         *
+         * Set to 0 to check the current time every time staleness is tested.
+         * (This reduces performance, and is theoretically unnecessary.)
+         *
+         * Setting this to a higher value will improve performance somewhat
+         * while using ttl tracking, albeit at the expense of keeping stale
+         * items around a bit longer than their TTLs would indicate.
+         *
+         * @default 1
+         */
+        ttlResolution?: Milliseconds;
+        /**
+         * Preemptively remove stale items from the cache.
+         * Note that this may significantly degrade performance,
+         * especially if the cache is storing a large number of items.
+         * It is almost always best to just leave the stale items in
+         * the cache, and let them fall out as new items are added.
+         *
+         * Note that this means that {@link OptionsBase.allowStale} is a bit
+         * pointless, as stale items will be deleted almost as soon as they
+         * expire.
+         *
+         * @default false
+         */
+        ttlAutopurge?: boolean;
+        /**
+         * Update the age of items on {@link LRUCache#get}, renewing their TTL
+         *
+         * Has no effect if {@link OptionsBase.ttl} is not set.
+         *
+         * @default false
+         */
+        updateAgeOnGet?: boolean;
+        /**
+         * Update the age of items on {@link LRUCache#has}, renewing their TTL
+         *
+         * Has no effect if {@link OptionsBase.ttl} is not set.
+         *
+         * @default false
+         */
+        updateAgeOnHas?: boolean;
+        /**
+         * Allow {@link LRUCache#get} and {@link LRUCache#fetch} calls to return
+         * stale data, if available.
+         */
+        allowStale?: boolean;
+        /**
+         * Function that is called on items when they are dropped from the cache.
+         * This can be handy if you want to close file descriptors or do other
+         * cleanup tasks when items are no longer accessible. Called with `key,
+         * value`.  It's called before actually removing the item from the
+         * internal cache, so it is *NOT* safe to re-add them.
+         *
+         * Use {@link OptionsBase.disposeAfter} if you wish to dispose items after
+         * they have been full removed, when it is safe to add them back to the
+         * cache.
+         */
+        dispose?: Disposer<K, V>;
+        /**
+         * The same as {@link OptionsBase.dispose}, but called *after* the entry
+         * is completely removed and the cache is once again in a clean state.
+         * It is safe to add an item right back into the cache at this point.
+         * However, note that it is *very* easy to inadvertently create infinite
+         * recursion this way.
+         */
+        disposeAfter?: Disposer<K, V>;
+        /**
+         * Set to true to suppress calling the
+         * {@link OptionsBase.dispose} function if the entry key is
+         * still accessible within the cache.
+         * This may be overridden by passing an options object to
+         * {@link LRUCache#set}.
+         */
+        noDisposeOnSet?: boolean;
+        /**
+         * Boolean flag to tell the cache to not update the TTL when
+         * setting a new value for an existing key (ie, when updating a value
+         * rather than inserting a new value).  Note that the TTL value is
+         * _always_ set (if provided) when adding a new entry into the cache.
+         *
+         * Has no effect if a {@link OptionsBase.ttl} is not set.
+         */
+        noUpdateTTL?: boolean;
+        /**
+         * If you wish to track item size, you must provide a maxSize
+         * note that we still will only keep up to max *actual items*,
+         * if max is set, so size tracking may cause fewer than max items
+         * to be stored.  At the extreme, a single item of maxSize size
+         * will cause everything else in the cache to be dropped when it
+         * is added.  Use with caution!
+         *
+         * Note also that size tracking can negatively impact performance,
+         * though for most cases, only minimally.
+         */
+        maxSize?: Size;
+        /**
+         * The maximum allowed size for any single item in the cache.
+         *
+         * If a larger item is passed to {@link LRUCache#set} or returned by a
+         * {@link OptionsBase.fetchMethod}, then it will not be stored in the
+         * cache.
+         */
+        maxEntrySize?: Size;
+        /**
+         * A function that returns a number indicating the item's size.
+         *
+         * If not provided, and {@link OptionsBase.maxSize} or
+         * {@link OptionsBase.maxEntrySize} are set, then all
+         * {@link LRUCache#set} calls **must** provide an explicit
+         * {@link SetOptions.size} or sizeCalculation param.
+         */
+        sizeCalculation?: SizeCalculator<K, V>;
+        /**
+         * Method that provides the implementation for {@link LRUCache#fetch}
+         */
+        fetchMethod?: Fetcher<K, V, FC>;
+        /**
+         * Set to true to suppress the deletion of stale data when a
+         * {@link OptionsBase.fetchMethod} returns a rejected promise.
+         */
+        noDeleteOnFetchRejection?: boolean;
+        /**
+         * Do not delete stale items when they are retrieved with
+         * {@link LRUCache#get}.
+         *
+         * Note that the `get` return value will still be `undefined`
+         * unless {@link OptionsBase.allowStale} is true.
+         */
+        noDeleteOnStaleGet?: boolean;
+        /**
+         * Set to true to allow returning stale data when a
+         * {@link OptionsBase.fetchMethod} throws an error or returns a rejected
+         * promise.
+         *
+         * This differs from using {@link OptionsBase.allowStale} in that stale
+         * data will ONLY be returned in the case that the
+         * {@link LRUCache#fetch} fails, not any other times.
+         */
+        allowStaleOnFetchRejection?: boolean;
+        /**
+         * Set to true to return a stale value from the cache when the
+         * `AbortSignal` passed to the {@link OptionsBase.fetchMethod} dispatches an `'abort'`
+         * event, whether user-triggered, or due to internal cache behavior.
+         *
+         * Unless {@link OptionsBase.ignoreFetchAbort} is also set, the underlying
+         * {@link OptionsBase.fetchMethod} will still be considered canceled, and
+         * any value it returns will be ignored and not cached.
+         *
+         * Caveat: since fetches are aborted when a new value is explicitly
+         * set in the cache, this can lead to fetch returning a stale value,
+         * since that was the fallback value _at the moment the `fetch()` was
+         * initiated_, even though the new updated value is now present in
+         * the cache.
+         *
+         * For example:
+         *
+         * ```ts
+         * const cache = new LRUCache<string, any>({
+         *   ttl: 100,
+         *   fetchMethod: async (url, oldValue, { signal }) =>  {
+         *     const res = await fetch(url, { signal })
+         *     return await res.json()
+         *   }
+         * })
+         * cache.set('https://example.com/', { some: 'data' })
+         * // 100ms go by...
+         * const result = cache.fetch('https://example.com/')
+         * cache.set('https://example.com/', { other: 'thing' })
+         * console.log(await result) // { some: 'data' }
+         * console.log(cache.get('https://example.com/')) // { other: 'thing' }
+         * ```
+         */
+        allowStaleOnFetchAbort?: boolean;
+        /**
+         * Set to true to ignore the `abort` event emitted by the `AbortSignal`
+         * object passed to {@link OptionsBase.fetchMethod}, and still cache the
+         * resulting resolution value, as long as it is not `undefined`.
+         *
+         * When used on its own, this means aborted {@link LRUCache#fetch} calls are not
+         * immediately resolved or rejected when they are aborted, and instead
+         * take the full time to await.
+         *
+         * When used with {@link OptionsBase.allowStaleOnFetchAbort}, aborted
+         * {@link LRUCache#fetch} calls will resolve immediately to their stale
+         * cached value or `undefined`, and will continue to process and eventually
+         * update the cache when they resolve, as long as the resulting value is
+         * not `undefined`, thus supporting a "return stale on timeout while
+         * refreshing" mechanism by passing `AbortSignal.timeout(n)` as the signal.
+         *
+         * **Note**: regardless of this setting, an `abort` event _is still
+         * emitted on the `AbortSignal` object_, so may result in invalid results
+         * when passed to other underlying APIs that use AbortSignals.
+         *
+         * This may be overridden in the {@link OptionsBase.fetchMethod} or the
+         * call to {@link LRUCache#fetch}.
+         */
+        ignoreFetchAbort?: boolean;
+    }
+    interface OptionsMaxLimit<K, V, FC> extends OptionsBase<K, V, FC> {
+        max: Count;
+    }
+    interface OptionsTTLLimit<K, V, FC> extends OptionsBase<K, V, FC> {
+        ttl: Milliseconds;
+        ttlAutopurge: boolean;
+    }
+    interface OptionsSizeLimit<K, V, FC> extends OptionsBase<K, V, FC> {
+        maxSize: Size;
+    }
+    /**
+     * The valid safe options for the {@link LRUCache} constructor
+     */
+    type Options<K, V, FC> = OptionsMaxLimit<K, V, FC> | OptionsSizeLimit<K, V, FC> | OptionsTTLLimit<K, V, FC>;
+    /**
+     * Entry objects used by {@link LRUCache#load} and {@link LRUCache#dump},
+     * and returned by {@link LRUCache#info}.
+     */
+    interface Entry<V> {
+        value: V;
+        ttl?: Milliseconds;
+        size?: Size;
+        start?: Milliseconds;
+    }
+}
+/**
+ * Default export, the thing you're using this module to get.
+ *
+ * All properties from the options object (with the exception of
+ * {@link OptionsBase.max} and {@link OptionsBase.maxSize}) are added as
+ * normal public members. (`max` and `maxBase` are read-only getters.)
+ * Changing any of these will alter the defaults for subsequent method calls,
+ * but is otherwise safe.
+ */
+export declare class LRUCache<K extends {}, V extends {}, FC = unknown> implements Map<K, V> {
+    #private;
+    /**
+     * {@link LRUCache.OptionsBase.ttl}
+     */
+    ttl: LRUCache.Milliseconds;
+    /**
+     * {@link LRUCache.OptionsBase.ttlResolution}
+     */
+    ttlResolution: LRUCache.Milliseconds;
+    /**
+     * {@link LRUCache.OptionsBase.ttlAutopurge}
+     */
+    ttlAutopurge: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.updateAgeOnGet}
+     */
+    updateAgeOnGet: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.updateAgeOnHas}
+     */
+    updateAgeOnHas: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.allowStale}
+     */
+    allowStale: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.noDisposeOnSet}
+     */
+    noDisposeOnSet: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.noUpdateTTL}
+     */
+    noUpdateTTL: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.maxEntrySize}
+     */
+    maxEntrySize: LRUCache.Size;
+    /**
+     * {@link LRUCache.OptionsBase.sizeCalculation}
+     */
+    sizeCalculation?: LRUCache.SizeCalculator<K, V>;
+    /**
+     * {@link LRUCache.OptionsBase.noDeleteOnFetchRejection}
+     */
+    noDeleteOnFetchRejection: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.noDeleteOnStaleGet}
+     */
+    noDeleteOnStaleGet: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.allowStaleOnFetchAbort}
+     */
+    allowStaleOnFetchAbort: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.allowStaleOnFetchRejection}
+     */
+    allowStaleOnFetchRejection: boolean;
+    /**
+     * {@link LRUCache.OptionsBase.ignoreFetchAbort}
+     */
+    ignoreFetchAbort: boolean;
+    /**
+     * Do not call this method unless you need to inspect the
+     * inner workings of the cache.  If anything returned by this
+     * object is modified in any way, strange breakage may occur.
+     *
+     * These fields are private for a reason!
+     *
+     * @internal
+     */
+    static unsafeExposeInternals<K extends {}, V extends {}, FC extends unknown = unknown>(c: LRUCache<K, V, FC>): {
+        starts: ZeroArray | undefined;
+        ttls: ZeroArray | undefined;
+        sizes: ZeroArray | undefined;
+        keyMap: Map<K, number>;
+        keyList: (K | undefined)[];
+        valList: (V | BackgroundFetch<V> | undefined)[];
+        next: NumberArray;
+        prev: NumberArray;
+        readonly head: Index;
+        readonly tail: Index;
+        free: StackLike;
+        isBackgroundFetch: (p: any) => boolean;
+        backgroundFetch: (k: K, index: number | undefined, options: LRUCache.FetchOptions<K, V, FC>, context: any) => BackgroundFetch<V>;
+        moveToTail: (index: number) => void;
+        indexes: (options?: {
+            allowStale: boolean;
+        }) => Generator<Index, void, unknown>;
+        rindexes: (options?: {
+            allowStale: boolean;
+        }) => Generator<Index, void, unknown>;
+        isStale: (index: number | undefined) => boolean;
+    };
+    /**
+     * {@link LRUCache.OptionsBase.max} (read-only)
+     */
+    get max(): LRUCache.Count;
+    /**
+     * {@link LRUCache.OptionsBase.maxSize} (read-only)
+     */
+    get maxSize(): LRUCache.Count;
+    /**
+     * The total computed size of items in the cache (read-only)
+     */
+    get calculatedSize(): LRUCache.Size;
+    /**
+     * The number of items stored in the cache (read-only)
+     */
+    get size(): LRUCache.Count;
+    /**
+     * {@link LRUCache.OptionsBase.fetchMethod} (read-only)
+     */
+    get fetchMethod(): LRUCache.Fetcher<K, V, FC> | undefined;
+    /**
+     * {@link LRUCache.OptionsBase.dispose} (read-only)
+     */
+    get dispose(): LRUCache.Disposer<K, V> | undefined;
+    /**
+     * {@link LRUCache.OptionsBase.disposeAfter} (read-only)
+     */
+    get disposeAfter(): LRUCache.Disposer<K, V> | undefined;
+    constructor(options: LRUCache.Options<K, V, FC> | LRUCache<K, V, FC>);
+    /**
+     * Return the remaining TTL time for a given entry key
+     */
+    getRemainingTTL(key: K): number;
+    /**
+     * Return a generator yielding `[key, value]` pairs,
+     * in order from most recently used to least recently used.
+     */
+    entries(): Generator<[K, V], void, unknown>;
+    /**
+     * Inverse order version of {@link LRUCache.entries}
+     *
+     * Return a generator yielding `[key, value]` pairs,
+     * in order from least recently used to most recently used.
+     */
+    rentries(): Generator<(K | V | BackgroundFetch<V> | undefined)[], void, unknown>;
+    /**
+     * Return a generator yielding the keys in the cache,
+     * in order from most recently used to least recently used.
+     */
+    keys(): Generator<K, void, unknown>;
+    /**
+     * Inverse order version of {@link LRUCache.keys}
+     *
+     * Return a generator yielding the keys in the cache,
+     * in order from least recently used to most recently used.
+     */
+    rkeys(): Generator<K, void, unknown>;
+    /**
+     * Return a generator yielding the values in the cache,
+     * in order from most recently used to least recently used.
+     */
+    values(): Generator<V, void, unknown>;
+    /**
+     * Inverse order version of {@link LRUCache.values}
+     *
+     * Return a generator yielding the values in the cache,
+     * in order from least recently used to most recently used.
+     */
+    rvalues(): Generator<V | BackgroundFetch<V> | undefined, void, unknown>;
+    /**
+     * Iterating over the cache itself yields the same results as
+     * {@link LRUCache.entries}
+     */
+    [Symbol.iterator](): Generator<[K, V], void, unknown>;
+    /**
+     * A String value that is used in the creation of the default string description of an object.
+     * Called by the built-in method Object.prototype.toString.
+     */
+    [Symbol.toStringTag]: string;
+    /**
+     * Find a value for which the supplied fn method returns a truthy value,
+     * similar to Array.find().  fn is called as fn(value, key, cache).
+     */
+    find(fn: (v: V, k: K, self: LRUCache<K, V, FC>) => boolean, getOptions?: LRUCache.GetOptions<K, V, FC>): V | undefined;
+    /**
+     * Call the supplied function on each item in the cache, in order from
+     * most recently used to least recently used.  fn is called as
+     * fn(value, key, cache).  Does not update age or recenty of use.
+     * Does not iterate over stale values.
+     */
+    forEach(fn: (v: V, k: K, self: LRUCache<K, V, FC>) => any, thisp?: any): void;
+    /**
+     * The same as {@link LRUCache.forEach} but items are iterated over in
+     * reverse order.  (ie, less recently used items are iterated over first.)
+     */
+    rforEach(fn: (v: V, k: K, self: LRUCache<K, V, FC>) => any, thisp?: any): void;
+    /**
+     * Delete any stale entries. Returns true if anything was removed,
+     * false otherwise.
+     */
+    purgeStale(): boolean;
+    /**
+     * Get the extended info about a given entry, to get its value, size, and
+     * TTL info simultaneously. Like {@link LRUCache#dump}, but just for a
+     * single key. Always returns stale values, if their info is found in the
+     * cache, so be sure to check for expired TTLs if relevant.
+     */
+    info(key: K): LRUCache.Entry<V> | undefined;
+    /**
+     * Return an array of [key, {@link LRUCache.Entry}] tuples which can be
+     * passed to cache.load()
+     */
+    dump(): [K, LRUCache.Entry<V>][];
+    /**
+     * Reset the cache and load in the items in entries in the order listed.
+     * Note that the shape of the resulting cache may be different if the
+     * same options are not used in both caches.
+     */
+    load(arr: [K, LRUCache.Entry<V>][]): void;
+    /**
+     * Add a value to the cache.
+     *
+     * Note: if `undefined` is specified as a value, this is an alias for
+     * {@link LRUCache#delete}
+     */
+    set(k: K, v: V | BackgroundFetch<V> | undefined, setOptions?: LRUCache.SetOptions<K, V, FC>): this;
+    /**
+     * Evict the least recently used item, returning its value or
+     * `undefined` if cache is empty.
+     */
+    pop(): V | undefined;
+    /**
+     * Check if a key is in the cache, without updating the recency of use.
+     * Will return false if the item is stale, even though it is technically
+     * in the cache.
+     *
+     * Will not update item age unless
+     * {@link LRUCache.OptionsBase.updateAgeOnHas} is set.
+     */
+    has(k: K, hasOptions?: LRUCache.HasOptions<K, V, FC>): boolean;
+    /**
+     * Like {@link LRUCache#get} but doesn't update recency or delete stale
+     * items.
+     *
+     * Returns `undefined` if the item is stale, unless
+     * {@link LRUCache.OptionsBase.allowStale} is set.
+     */
+    peek(k: K, peekOptions?: LRUCache.PeekOptions<K, V, FC>): V | undefined;
+    /**
+     * Make an asynchronous cached fetch using the
+     * {@link LRUCache.OptionsBase.fetchMethod} function.
+     *
+     * If multiple fetches for the same key are issued, then they will all be
+     * coalesced into a single call to fetchMethod.
+     *
+     * Note that this means that handling options such as
+     * {@link LRUCache.OptionsBase.allowStaleOnFetchAbort},
+     * {@link LRUCache.FetchOptions.signal},
+     * and {@link LRUCache.OptionsBase.allowStaleOnFetchRejection} will be
+     * determined by the FIRST fetch() call for a given key.
+     *
+     * This is a known (fixable) shortcoming which will be addresed on when
+     * someone complains about it, as the fix would involve added complexity and
+     * may not be worth the costs for this edge case.
+     */
+    fetch(k: K, fetchOptions: unknown extends FC ? LRUCache.FetchOptions<K, V, FC> : FC extends undefined | void ? LRUCache.FetchOptionsNoContext<K, V> : LRUCache.FetchOptionsWithContext<K, V, FC>): Promise<undefined | V>;
+    fetch(k: unknown extends FC ? K : FC extends undefined | void ? K : never, fetchOptions?: unknown extends FC ? LRUCache.FetchOptions<K, V, FC> : FC extends undefined | void ? LRUCache.FetchOptionsNoContext<K, V> : never): Promise<undefined | V>;
+    /**
+     * Return a value from the cache. Will update the recency of the cache
+     * entry found.
+     *
+     * If the key is not found, get() will return `undefined`.
+     */
+    get(k: K, getOptions?: LRUCache.GetOptions<K, V, FC>): V | undefined;
+    /**
+     * Deletes a key out of the cache.
+     * Returns true if the key was deleted, false otherwise.
+     */
+    delete(k: K): boolean;
+    /**
+     * Clear the cache entirely, throwing away all values.
+     */
+    clear(): void;
+}
+//# sourceMappingURL=index.d.ts.map

my-app/node_modules/@npmcli/agent/node_modules/lru-cache/dist/esm/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

my-app/node_modules/@npmcli/agent/node_modules/lru-cache/package.json

@@ -0,0 +1,118 @@
+{
+  "name": "lru-cache",
+  "description": "A cache object that deletes the least-recently-used items.",
+  "version": "10.2.0",
+  "author": "Isaac Z. Schlueter <i@izs.me>",
+  "keywords": [
+    "mru",
+    "lru",
+    "cache"
+  ],
+  "sideEffects": false,
+  "scripts": {
+    "build": "npm run prepare",
+    "prepare": "tshy",
+    "postprepare": "bash fixup.sh",
+    "pretest": "npm run prepare",
+    "presnap": "npm run prepare",
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags",
+    "format": "prettier --write .",
+    "typedoc": "typedoc --tsconfig ./.tshy/esm.json ./src/*.ts",
+    "benchmark-results-typedoc": "bash scripts/benchmark-results-typedoc.sh",
+    "prebenchmark": "npm run prepare",
+    "benchmark": "make -C benchmark",
+    "preprofile": "npm run prepare",
+    "profile": "make -C benchmark profile"
+  },
+  "main": "./dist/commonjs/index.js",
+  "types": "./dist/commonjs/index.d.ts",
+  "tshy": {
+    "exports": {
+      ".": "./src/index.ts",
+      "./min": {
+        "import": {
+          "types": "./dist/mjs/index.d.ts",
+          "default": "./dist/mjs/index.min.js"
+        },
+        "require": {
+          "types": "./dist/commonjs/index.d.ts",
+          "default": "./dist/commonjs/index.min.js"
+        }
+      }
+    }
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/node-lru-cache.git"
+  },
+  "devDependencies": {
+    "@tapjs/clock": "^1.1.16",
+    "@types/node": "^20.2.5",
+    "@types/tap": "^15.0.6",
+    "benchmark": "^2.1.4",
+    "clock-mock": "^2.0.2",
+    "esbuild": "^0.17.11",
+    "eslint-config-prettier": "^8.5.0",
+    "marked": "^4.2.12",
+    "mkdirp": "^2.1.5",
+    "prettier": "^2.6.2",
+    "tap": "^18.5.7",
+    "tshy": "^1.8.0",
+    "tslib": "^2.4.0",
+    "typedoc": "^0.25.3",
+    "typescript": "^5.2.2"
+  },
+  "license": "ISC",
+  "files": [
+    "dist"
+  ],
+  "engines": {
+    "node": "14 || >=16.14"
+  },
+  "prettier": {
+    "semi": false,
+    "printWidth": 70,
+    "tabWidth": 2,
+    "useTabs": false,
+    "singleQuote": true,
+    "jsxSingleQuote": false,
+    "bracketSameLine": true,
+    "arrowParens": "avoid",
+    "endOfLine": "lf"
+  },
+  "tap": {
+    "node-arg": [
+      "--expose-gc"
+    ],
+    "plugin": [
+      "@tapjs/clock"
+    ]
+  },
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/esm/index.d.ts",
+        "default": "./dist/esm/index.js"
+      },
+      "require": {
+        "types": "./dist/commonjs/index.d.ts",
+        "default": "./dist/commonjs/index.js"
+      }
+    },
+    "./min": {
+      "import": {
+        "types": "./dist/mjs/index.d.ts",
+        "default": "./dist/mjs/index.min.js"
+      },
+      "require": {
+        "types": "./dist/commonjs/index.d.ts",
+        "default": "./dist/commonjs/index.min.js"
+      }
+    }
+  },
+  "type": "module"
+}

my-app/node_modules/@npmcli/agent/package.json

@@ -0,0 +1,60 @@
+{
+  "name": "@npmcli/agent",
+  "version": "2.2.1",
+  "description": "the http/https agent used by the npm cli",
+  "main": "lib/index.js",
+  "scripts": {
+    "gencerts": "bash scripts/create-cert.sh",
+    "test": "tap",
+    "lint": "eslint \"**/*.{js,cjs,ts,mjs,jsx,tsx}\"",
+    "postlint": "template-oss-check",
+    "template-oss-apply": "template-oss-apply --force",
+    "lintfix": "npm run lint -- --fix",
+    "snap": "tap",
+    "posttest": "npm run lint"
+  },
+  "author": "GitHub Inc.",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/npm/agent/issues"
+  },
+  "homepage": "https://github.com/npm/agent#readme",
+  "files": [
+    "bin/",
+    "lib/"
+  ],
+  "engines": {
+    "node": "^16.14.0 || >=18.0.0"
+  },
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "version": "4.21.3",
+    "publish": "true"
+  },
+  "dependencies": {
+    "agent-base": "^7.1.0",
+    "http-proxy-agent": "^7.0.0",
+    "https-proxy-agent": "^7.0.1",
+    "lru-cache": "^10.0.1",
+    "socks-proxy-agent": "^8.0.1"
+  },
+  "devDependencies": {
+    "@npmcli/eslint-config": "^4.0.0",
+    "@npmcli/template-oss": "4.21.3",
+    "minipass-fetch": "^3.0.3",
+    "nock": "^13.2.7",
+    "semver": "^7.5.4",
+    "simple-socks": "^3.1.0",
+    "tap": "^16.3.0"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/agent.git"
+  },
+  "tap": {
+    "nyc-arg": [
+      "--exclude",
+      "tap-snapshots/**"
+    ]
+  }
+}