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+// Copyright 2019 Google LLC
+//
+// 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
+//
+// https://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.
+
+// Note: this file is purely for documentation. Any contents are not expected
+// to be loaded as the JS file.
+
+/**
+ * `Any` contains an arbitrary serialized protocol buffer message along with a
+ * URL that describes the type of the serialized message.
+ *
+ * Protobuf library provides support to pack/unpack Any values in the form
+ * of utility functions or additional generated methods of the Any type.
+ *
+ * Example 1: Pack and unpack a message in C++.
+ *
+ * Foo foo = ...;
+ * Any any;
+ * any.PackFrom(foo);
+ * ...
+ * if (any.UnpackTo(&foo)) {
+ * ...
+ * }
+ *
+ * Example 2: Pack and unpack a message in Java.
+ *
+ * Foo foo = ...;
+ * Any any = Any.pack(foo);
+ * ...
+ * if (any.is(Foo.class)) {
+ * foo = any.unpack(Foo.class);
+ * }
+ *
+ * Example 3: Pack and unpack a message in Python.
+ *
+ * foo = Foo(...)
+ * any = Any()
+ * any.Pack(foo)
+ * ...
+ * if any.Is(Foo.DESCRIPTOR):
+ * any.Unpack(foo)
+ * ...
+ *
+ * Example 4: Pack and unpack a message in Go
+ *
+ * foo := &pb.Foo{...}
+ * any, err := ptypes.MarshalAny(foo)
+ * ...
+ * foo := &pb.Foo{}
+ * if err := ptypes.UnmarshalAny(any, foo); err != nil {
+ * ...
+ * }
+ *
+ * The pack methods provided by protobuf library will by default use
+ * 'type.googleapis.com/full.type.name' as the type URL and the unpack
+ * methods only use the fully qualified type name after the last '/'
+ * in the type URL, for example "foo.bar.com/x/y.z" will yield type
+ * name "y.z".
+ *
+ *
+ * # JSON
+ *
+ * The JSON representation of an `Any` value uses the regular
+ * representation of the deserialized, embedded message, with an
+ * additional field `@type` which contains the type URL. Example:
+ *
+ * package google.profile;
+ * message Person {
+ * string first_name = 1;
+ * string last_name = 2;
+ * }
+ *
+ * {
+ * "@type": "type.googleapis.com/google.profile.Person",
+ * "firstName": <string>,
+ * "lastName": <string>
+ * }
+ *
+ * If the embedded message type is well-known and has a custom JSON
+ * representation, that representation will be embedded adding a field
+ * `value` which holds the custom JSON in addition to the `@type`
+ * field. Example (for message google.protobuf.Duration):
+ *
+ * {
+ * "@type": "type.googleapis.com/google.protobuf.Duration",
+ * "value": "1.212s"
+ * }
+ *
+ * @property {string} typeUrl
+ * A URL/resource name that uniquely identifies the type of the serialized
+ * protocol buffer message. The last segment of the URL's path must represent
+ * the fully qualified name of the type (as in
+ * `path/google.protobuf.Duration`). The name should be in a canonical form
+ * (e.g., leading "." is not accepted).
+ *
+ * In practice, teams usually precompile into the binary all types that they
+ * expect it to use in the context of Any. However, for URLs which use the
+ * scheme `http`, `https`, or no scheme, one can optionally set up a type
+ * server that maps type URLs to message definitions as follows:
+ *
+ * * If no scheme is provided, `https` is assumed.
+ * * An HTTP GET on the URL must yield a google.protobuf.Type
+ * value in binary format, or produce an error.
+ * * Applications are allowed to cache lookup results based on the
+ * URL, or have them precompiled into a binary to avoid any
+ * lookup. Therefore, binary compatibility needs to be preserved
+ * on changes to types. (Use versioned type names to manage
+ * breaking changes.)
+ *
+ * Note: this functionality is not currently available in the official
+ * protobuf release, and it is not used for type URLs beginning with
+ * type.googleapis.com.
+ *
+ * Schemes other than `http`, `https` (or the empty scheme) might be
+ * used with implementation specific semantics.
+ *
+ * @property {string} value
+ * Must be a valid serialized protocol buffer of the above specified type.
+ *
+ * @typedef Any
+ * @memberof google.protobuf
+ * @see [google.protobuf.Any definition in proto format]{@link https://github.com/google/protobuf/blob/master/src/google/protobuf/any.proto}
+ */
+const Any = {
+ // This is for documentation. Actual contents will be loaded by gRPC.
+};
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