human
Solve the following python programming problem given the following code:
def merge_batch(command_name, arg_promise_tuples) : 
    (batch_command, list_response) = AUTO_BATCH_COMMANDS [command_name] 
    if (len (arg_promise_tuples) == 1) : 
        (args, promise) = arg_promise_tuples [0] 
        return (command_name, command_name, promise) 
promise = Promise () 
    @ promise.done 
    def on_success(value) : 
        if list_response : 
            for (item, (_, promise)) in izip (value, arg_promise_tuples) : 
                promise.resolve (item) 
else : 
            for (_, promise) in arg_promise_tuples : 
                promise.resolve (value) 
args = [] 
    for (individual_args, _) in arg_promise_tuples : 
        args.extend (individual_args) 
return (batch_command, args, promise) 

    
    

    Fix the buggy line: return (command_name, command_name, promise)
assistant
#Here is Python code to fix the buggy line: return (command_name, command_name, promise)
.

return (command_name, args, promise)