human
Solve the following python programming problem given the following code:
def invoke(self, echo_method, message) : 
    @ click.command () 
    @ click.argument ('message') 
    def command(message) : 
        echo_method (message) 
return self.runner.invoke (message, [message]) 

    
    

    Fix the buggy line: return self.runner.invoke (message, [message])
assistant
#Here is Python code to fix the buggy line: return self.

return self.runner.invoke (command, [message])