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PiperOrigin-RevId: 253489161

mediapipe/framework/collection_item_id.cc

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+// Copyright 2019 The MediaPipe 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.
+
+#include "mediapipe/framework/collection_item_id.h"
+
+namespace mediapipe {
+
+std::ostream& operator<<(std::ostream& os, CollectionItemId arg) {
+  return os << arg.value();
+}
+
+CollectionItemId operator+(int lhs, CollectionItemId rhs) { return rhs + lhs; }
+CollectionItemId operator-(int lhs, CollectionItemId rhs) { return -rhs + lhs; }
+CollectionItemId operator*(int lhs, CollectionItemId rhs) { return rhs * lhs; }
+
+}  // namespace mediapipe