code: public ServiceFuture<Void> updateFaceAsync(String personGroupId, UUID personId, UUID persistedFaceId, UpdateFaceOptionalParameter updateFaceOptionalParameter, final ServiceCallback<Void> serviceCallback) {
          return ServiceFuture.fromResponse(updateFaceWithServiceResponseAsync(personGroupId, personId, persistedFaceId, updateFaceOptionalParameter), serviceCallback);
      }
docs: Update a person persisted face's userData field.
  
  @param personGroupId Id referencing a particular person group.
  @param personId Id referencing a particular person.
  @param persistedFaceId Id referencing a particular persistedFaceId of an existing face.
  @param updateFaceOptionalParameter the object representing the optional parameters to be set before calling this API
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object