message: Added the experimetal flag 'disable_model_bias' to stop adding per-token bias stored in the model.
diff: @@ -853,6 +853,11 @@ message CheckSpellingRequest {
  // score(suggestion) - score(original) >= score_threshold.
  // Used to control the precision/recall trade-off.
  optional float score_threshold = 2;
  +
  + // Disables to add the special per-candidate bias-score stored in the model
  + // file. This flat should be enabled in experiment. We can make the behavior
  + // more aggressive.
  + optional bool disable_model_bias = 3;
  }
  // Spellchecker response.
  