code: public ServiceFuture<FoundFaces> findFacesUrlInputAsync(String contentType, BodyModelModel imageUrl, FindFacesUrlInputOptionalParameter findFacesUrlInputOptionalParameter, final ServiceCallback<FoundFaces> serviceCallback) {
          return ServiceFuture.fromResponse(findFacesUrlInputWithServiceResponseAsync(contentType, imageUrl, findFacesUrlInputOptionalParameter), serviceCallback);
      }
docs: Returns the list of faces found.
  
  @param contentType The content type.
  @param imageUrl The image url.
  @param findFacesUrlInputOptionalParameter 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