|  | // Copyright 2017 Google Inc. | 
|  | // | 
|  | // 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. | 
|  |  | 
|  | syntax = "proto3"; | 
|  |  | 
|  | package google.api; | 
|  |  | 
|  | option cc_enable_arenas = true; | 
|  | option go_package = "google.golang.org/genproto/googleapis/api/label;label"; | 
|  | option java_multiple_files = true; | 
|  | option java_outer_classname = "LabelProto"; | 
|  | option java_package = "com.google.api"; | 
|  | option objc_class_prefix = "GAPI"; | 
|  |  | 
|  |  | 
|  | // A description of a label. | 
|  | message LabelDescriptor { | 
|  | // Value types that can be used as label values. | 
|  | enum ValueType { | 
|  | // A variable-length string. This is the default. | 
|  | STRING = 0; | 
|  |  | 
|  | // Boolean; true or false. | 
|  | BOOL = 1; | 
|  |  | 
|  | // A 64-bit signed integer. | 
|  | INT64 = 2; | 
|  | } | 
|  |  | 
|  | // The label key. | 
|  | string key = 1; | 
|  |  | 
|  | // The type of data that can be assigned to the label. | 
|  | ValueType value_type = 2; | 
|  |  | 
|  | // A human-readable description for the label. | 
|  | string description = 3; | 
|  | } |