public Builder mergeFrom(
        com.google.cloud.texttospeech.v1beta1.StreamingSynthesizeRequest other) {
      if (other
          == com.google.cloud.texttospeech.v1beta1.StreamingSynthesizeRequest.getDefaultInstance())
        return this;
      switch (other.getStreamingRequestCase()) {
        case STREAMING_CONFIG:
          {
            mergeStreamingConfig(other.getStreamingConfig());
            break;
          }
        case INPUT:
          {
            mergeInput(other.getInput());
            break;
          }
        case STREAMINGREQUEST_NOT_SET:
          {
            break;
          }
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
Request message for the `StreamingSynthesize` method. Multiple
`StreamingSynthesizeRequest` messages are sent in one call.
The first message must contain a `streaming_config` that
fully specifies the request configuration and must not contain `input`. All
subsequent messages must only have `input` set.
</pre>

Protobuf type {@code google.cloud.texttospeech.v1beta1.StreamingSynthesizeRequest}
java-texttospeech/proto-google-cloud-texttospeech-v1beta1/src/main/java/com/google/cloud/texttospeech/v1beta1/StreamingSynthesizeRequest.java