@java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }
<pre>
A unique id associated with this call.
This id is logged for tracking purposes.
</pre>

<code>string request_id = 1;</code>

@return The bytes for requestId.
java-talent/proto-google-cloud-talent-v4beta1/src/main/java/com/google/cloud/talent/v4beta1/ResponseMetadata.java