code: public OperationStatusResponseInner deallocate(String resourceGroupName, String vmName) {
          return deallocateWithServiceResponseAsync(resourceGroupName, vmName).toBlocking().last().body();
      }
docs: Shuts down the virtual machine and releases the compute resources. You are not billed for the compute resources that this virtual machine uses.
  
  @param resourceGroupName The name of the resource group.
  @param vmName The name of the virtual machine.
  @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 OperationStatusResponseInner object if successful.