code: public WorkflowTriggerCallbackUrlInner listCallbackUrl(String resourceGroupName, String workflowName, String versionId, String triggerName, GetCallbackUrlParameters parameters) {
          return listCallbackUrlWithServiceResponseAsync(resourceGroupName, workflowName, versionId, triggerName, parameters).toBlocking().single().body();
      }
docs: Get the callback url for a trigger of a workflow version.
  
  @param resourceGroupName The resource group name.
  @param workflowName The workflow name.
  @param versionId The workflow versionId.
  @param triggerName The workflow trigger name.
  @param parameters The callback URL parameters.
  @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
  @return the WorkflowTriggerCallbackUrlInner object if successful.