public com.google.cloud.speech.v1p1beta1.RecognitionConfig.Builder getConfigBuilder() {
      bitField0_ |= 0x00000001;
      onChanged();
      return getConfigFieldBuilder().getBuilder();
    }
<pre>
Required. Provides information to the recognizer that specifies how to
process the request.
</pre>

<code>
.google.cloud.speech.v1p1beta1.RecognitionConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-speech/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/LongRunningRecognizeRequest.java