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| 1 // Copyright (c) 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 // |
| 5 // Experimental Translation Assist Model to allow/suppress translation prompts. |
| 6 |
| 7 syntax = "proto2"; |
| 8 |
| 9 option optimize_for = LITE_RUNTIME; |
| 10 |
| 11 import "translate_ranker_model.proto"; |
| 12 |
| 13 package chrome_intelligence; |
| 14 |
| 15 // Metadata for a ranker model instance. This data describes how the ranker |
| 16 // model should be interpreted/used. |
| 17 message RankerModelMetadata { |
| 18 // An identifier denoting the type or purpose of this model. |
| 19 optional string name = 1; |
| 20 |
| 21 // An identifier denoting the specific instance of this model. For example: |
| 22 // "Experiment B" |
| 23 optional string label = 2; |
| 24 |
| 25 // An identifier, typically a URL, denoting the source from which this model |
| 26 // was obtained. The model referenced with a given source is presumed to be |
| 27 // immutable; this can be used as a cache control mechanism. If the currently |
| 28 // configured model source matches the source of a cached model, and the |
| 29 // cached model has not expired then there is no need to refresh the model. |
| 30 optional string source = 3; |
| 31 |
| 32 // The timestamp at which this model was downloaded. This will be set by the |
| 33 // model loader before it caches the model to disk. |
| 34 optional int64 last_modified_sec = 4; |
| 35 |
| 36 // The (optional) number of seconds after which this model should be |
| 37 // considered expired. If the value is zero or not set, then the cached |
| 38 // instance of the model never expires. A new download can be triggered by |
| 39 // changing the configured source URL for the model loader. |
| 40 optional int64 cache_duration_sec = 5; |
| 41 } |
| 42 |
| 43 // Defines an envelope/wrapper for general models. |
| 44 message RankerModelProto { |
| 45 // Metadata. |
| 46 optional RankerModelMetadata metadata = 1; |
| 47 |
| 48 oneof model { TranslateRankerModel translate = 2; } |
| 49 } |
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