public Builder mergeStreamingConfig(
        com.google.cloud.speech.v2.StreamingRecognitionConfig value) {
      if (streamingConfigBuilder_ == null) {
        if (streamingRequestCase_ == 6
            && streamingRequest_
                != com.google.cloud.speech.v2.StreamingRecognitionConfig.getDefaultInstance()) {
          streamingRequest_ =
              com.google.cloud.speech.v2.StreamingRecognitionConfig.newBuilder(
                      (com.google.cloud.speech.v2.StreamingRecognitionConfig) streamingRequest_)
                  .mergeFrom(value)
                  .buildPartial();
        } else {
          streamingRequest_ = value;
        }
        onChanged();
      } else {
        if (streamingRequestCase_ == 6) {
          streamingConfigBuilder_.mergeFrom(value);
        } else {
          streamingConfigBuilder_.setMessage(value);
        }
      }
      streamingRequestCase_ = 6;
      return this;
    }
<pre>
StreamingRecognitionConfig to be used in this recognition attempt.
If provided, it will override the default RecognitionConfig stored in the
Recognizer.
</pre>

<code>.google.cloud.speech.v2.StreamingRecognitionConfig streaming_config = 6;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/StreamingRecognizeRequest.java