public com.google.protobuf.ByteString getParentBytes() {
      java.lang.Object ref = parent_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        parent_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
<pre>
Required. Location to make a regional call.

Format: `projects/{project-number-or-id}/locations/{location-id}`.

For global calls, use `projects/{project-number-or-id}/locations/global` or
`projects/{project-number-or-id}`.

Non-global location is required for requests using AutoML models or custom
glossaries.

Models and glossaries must be within the same region (have the same
location-id), otherwise an INVALID_ARGUMENT (400) error is returned.
</pre>

<code>string parent = 1 [(.google.api.field_behavior) = REQUIRED];</code>

@return The bytes for parent.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/TranslateDocumentRequest.java