public Builder clearStreamingConfig() {
      if (streamingConfigBuilder_ == null) {
        if (streamingRequestCase_ == 1) {
          streamingRequestCase_ = 0;
          streamingRequest_ = null;
          onChanged();
        }
      } else {
        if (streamingRequestCase_ == 1) {
          streamingRequestCase_ = 0;
          streamingRequest_ = null;
        }
        streamingConfigBuilder_.clear();
      }
      return this;
    }
<pre>
StreamingSynthesizeConfig to be used in this streaming attempt. Only
specified in the first message sent in a `StreamingSynthesize` call.
</pre>

<code>.google.cloud.texttospeech.v1.StreamingSynthesizeConfig streaming_config = 1;</code>
java-texttospeech/proto-google-cloud-texttospeech-v1/src/main/java/com/google/cloud/texttospeech/v1/StreamingSynthesizeRequest.java