code: def pipeline_execute_command(self, *args, **options):
          
          self.command_stack.append((args, options))
          return self
docs: Stage a command to be executed when execute() is next called
  
          Returns the current Pipeline object back so commands can be
          chained together, such as:
  
          pipe = pipe.set('foo', 'bar').incr('baz').decr('bang')
  
          At some other point, you can then run: pipe.execute(),
          which will execute all commands queued in the pipe.