Added delete option to database storage.

venv/Lib/site-packages/grpc/framework/common/__init__.py

@@ -0,0 +1,13 @@
+# Copyright 2015 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.

venv/Lib/site-packages/grpc/framework/common/cardinality.py

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+# Copyright 2015 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Defines an enum for classifying RPC methods by streaming semantics."""
+
+import enum
+
+
+@enum.unique
+class Cardinality(enum.Enum):
+    """Describes the streaming semantics of an RPC method."""
+
+    UNARY_UNARY = 'request-unary/response-unary'
+    UNARY_STREAM = 'request-unary/response-streaming'
+    STREAM_UNARY = 'request-streaming/response-unary'
+    STREAM_STREAM = 'request-streaming/response-streaming'

venv/Lib/site-packages/grpc/framework/common/style.py

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+# Copyright 2015 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Defines an enum for classifying RPC methods by control flow semantics."""
+
+import enum
+
+
+@enum.unique
+class Service(enum.Enum):
+    """Describes the control flow style of RPC method implementation."""
+
+    INLINE = 'inline'
+    EVENT = 'event'