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1 // Copyright (c) 2017 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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