Updated the files.

my-app/node_modules/foreground-child/dist/cjs/index.d.ts

@@ -0,0 +1,54 @@
+/// <reference types="node" />
+/// <reference types="node" />
+import { ChildProcess, SpawnOptions } from 'child_process';
+/**
+ * The signature for the cleanup method.
+ *
+ * Arguments indicate the exit status of the child process.
+ *
+ * If a Promise is returned, then the process is not terminated
+ * until it resolves, and the resolution value is treated as the
+ * exit status (if a number) or signal exit (if a signal string).
+ *
+ * If `undefined` is returned, then no change is made, and the parent
+ * exits in the same way that the child exited.
+ *
+ * If boolean `false` is returned, then the parent's exit is canceled.
+ *
+ * If a number is returned, then the parent process exits with the number
+ * as its exitCode.
+ *
+ * If a signal string is returned, then the parent process is killed with
+ * the same signal that caused the child to exit.
+ */
+export type Cleanup = (code: number | null, signal: null | NodeJS.Signals) => void | undefined | number | NodeJS.Signals | false | Promise<void | undefined | number | NodeJS.Signals | false>;
+export type FgArgs = [program: string | string[], cleanup?: Cleanup] | [program: string[], opts?: SpawnOptions, cleanup?: Cleanup] | [program: string, cleanup?: Cleanup] | [program: string, opts?: SpawnOptions, cleanup?: Cleanup] | [program: string, args?: string[], cleanup?: Cleanup] | [
+    program: string,
+    args?: string[],
+    opts?: SpawnOptions,
+    cleanup?: Cleanup
+];
+/**
+ * Normalizes the arguments passed to `foregroundChild`.
+ *
+ * Exposed for testing.
+ *
+ * @internal
+ */
+export declare const normalizeFgArgs: (fgArgs: FgArgs) => [program: string, args: string[], spawnOpts: SpawnOptions, cleanup: Cleanup];
+/**
+ * Spawn the specified program as a "foreground" process, or at least as
+ * close as is possible given node's lack of exec-without-fork.
+ *
+ * Cleanup method may be used to modify or ignore the result of the child's
+ * exit code or signal. If cleanup returns undefined (or a Promise that
+ * resolves to undefined), then the parent will exit in the same way that
+ * the child did.
+ *
+ * Return boolean `false` to prevent the parent's exit entirely.
+ */
+export declare function foregroundChild(cmd: string | string[], cleanup?: Cleanup): ChildProcess;
+export declare function foregroundChild(program: string, args?: string[], cleanup?: Cleanup): ChildProcess;
+export declare function foregroundChild(program: string, spawnOpts?: SpawnOptions, cleanup?: Cleanup): ChildProcess;
+export declare function foregroundChild(program: string, args?: string[], spawnOpts?: SpawnOptions, cleanup?: Cleanup): ChildProcess;
+//# sourceMappingURL=index.d.ts.map