code: public void cancel(String resourceGroupName, String serverName, String elasticPoolName, UUID operationId) {
          cancelWithServiceResponseAsync(resourceGroupName, serverName, elasticPoolName, operationId).toBlocking().single().body();
      }
docs: Cancels the asynchronous operation on the elastic pool.
  
  @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value from the Azure Resource Manager API or the portal.
  @param serverName The name of the server.
  @param elasticPoolName the String value
  @param operationId The operation identifier.
  @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