code: public ServiceFuture<WorkflowTriggerCallbackUrlInner> listCallbackUrlAsync(String resourceGroupName, String workflowName, GetCallbackUrlParameters listCallbackUrl, final ServiceCallback<WorkflowTriggerCallbackUrlInner> serviceCallback) {
          return ServiceFuture.fromResponse(listCallbackUrlWithServiceResponseAsync(resourceGroupName, workflowName, listCallbackUrl), serviceCallback);
      }
docs: Get the workflow callback Url.
  
  @param resourceGroupName The resource group name.
  @param workflowName The workflow name.
  @param listCallbackUrl Which callback url to list.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object