code: public OperationStatus updateCompositeEntity(UUID appId, String versionId, UUID cEntityId, CompositeEntityModel compositeModelUpdateObject) {
          return updateCompositeEntityWithServiceResponseAsync(appId, versionId, cEntityId, compositeModelUpdateObject).toBlocking().single().body();
      }
docs: Updates the composite entity extractor.
  
  @param appId The application ID.
  @param versionId The version ID.
  @param cEntityId The composite entity extractor ID.
  @param compositeModelUpdateObject A model object containing the new entity extractor name and children.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws ErrorResponseException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the OperationStatus object if successful.