code: public void regenerateAccessKey(String resourceGroupName, String workflowName) {
          regenerateAccessKeyWithServiceResponseAsync(resourceGroupName, workflowName).toBlocking().single().body();
      }
docs: Regenerates the callback URL access key for request triggers.
  
  @param resourceGroupName The resource group name.
  @param workflowName The workflow name.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws CloudException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent