human
Solve the following python programming problem given the following code:
@ defer.inlineCallbacks 
def fire(self, * args, **kwargs) : 
    'Invokes every callable in the observer list, passing in the args and
        kwargs. Exceptions thrown by observers are logged but ignored. It is
        not an error to fire a signal with no observers.

        Returns a Deferred that will complete when all the observers have
        completed.' 
    def do(observer) : 
        def eb(failure) : 
            logger.warning ('%s signal observer %s failed: %r', self.name, observer, failure, exc_info = (failure.type, failure.value, failure.getTracebackObject ())) 
            if (not self.suppress_failures) : 
                return failure 
return defer.maybeDeferred (observer, * args, ** kwargs).addErrback (eb) 
with PreserveLoggingContext () : 
        deferreds = [do (do) for observer in self.observers] 
        res = (yield defer.gatherResults (deferreds, consumeErrors = True).addErrback (unwrapFirstError)) 
defer.returnValue (res) 

    
    

    Fix the buggy line: deferreds = [do (do) for observer in self.observers]
assistant
#Here is Python program to fix the buggy line: deferreds = [do (do) for observer in self.

deferreds = [do (observer) for observer in self.observers]