human
Solve the following python programming problem given the following code:
def connectSubsystem(connection, protocol, subsystem) : 
    'Connect a Protocol to a ssh subsystem channel
    ' 
    deferred = connectSession (connection, connection) 
    @ deferred.addCallback 
    def requestSubsystem(session) : 
        return session.requestSubsystem (subsystem) 
return deferred 

    
    

    Fix the buggy line: deferred = connectSession (connection, connection)
assistant
#Here is Python code to fix the buggy line: deferred = connectSession (connection, connection)
.

deferred = connectSession (connection, protocol)