@java.lang.Override
  public java.lang.String getMethodName() {
    java.lang.Object ref = methodName_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      methodName_ = s;
      return s;
    }
  }
<pre>
Optional. Fully qualified name of the API method being invoked to perform
predictions.

Format:
`/namespace.Service/Method/`
Example:
`/tensorflow.serving.PredictionService/Predict`
</pre>

<code>string method_name = 2 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The methodName.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/StreamDirectRawPredictRequest.java