@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(endpoint_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, endpoint_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(methodName_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, methodName_);
    }
    if (!input_.isEmpty()) {
      output.writeBytes(3, input_);
    }
    getUnknownFields().writeTo(output);
  }
<pre>
The prediction input.
</pre>

<code>bytes input = 3;</code>

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