private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetLabels() {
    if (labels_ == null) {
      return com.google.protobuf.MapField.emptyMapField(LabelsDefaultEntryHolder.defaultEntry);
    }
    return labels_;
  }
<pre>
Optional. Target project and location to make a call.

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

If no parent is specified, a region will be chosen automatically.

Supported location-ids:
    `us`: USA country only,
    `asia`: East asia areas, like Japan, Taiwan,
    `eu`: The European Union.

Example: `projects/project-A/locations/eu`.
</pre>

<code>string parent = 3;</code>

@return The bytes for parent.
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/BatchAnnotateFilesRequest.java