code: public Observable<WorkflowTriggerCallbackUrlInner> listContentCallbackUrlAsync(String resourceGroupName, String integrationAccountName, String partnerName, GetCallbackUrlParameters listContentCallbackUrl) {
          return listContentCallbackUrlWithServiceResponseAsync(resourceGroupName, integrationAccountName, partnerName, listContentCallbackUrl).map(new Func1<ServiceResponse<WorkflowTriggerCallbackUrlInner>, WorkflowTriggerCallbackUrlInner>() {
              @Override
              public WorkflowTriggerCallbackUrlInner call(ServiceResponse<WorkflowTriggerCallbackUrlInner> response) {
                  return response.body();
              }
          });
      }
docs: Get the content callback url.
  
  @param resourceGroupName The resource group name.
  @param integrationAccountName The integration account name.
  @param partnerName The integration account partner name.
  @param listContentCallbackUrl the GetCallbackUrlParameters value
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the WorkflowTriggerCallbackUrlInner object