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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def connectProcess(connection, processProtocol, commandLine='', env={}, usePTY=None, childFDs=None, *args, **kwargs):
 """Opens a SSHSession channel and connects a ProcessProtocol to it @param connection: the SSH Connection to open the session channel on @param processProtocol: the ProcessProtocol instance to connect to the process @param commandLine: the command line to execute the process @param env: optional environment variables to set for the process @param usePTY: if set, request a PTY for the process @param childFDs: custom child file descriptors for the process """

    processOpenDeferred = defer.Deferred()
    process = SSHProcess(processProtocol, commandLine, env, usePTY, childFDs,
                         *args, **kwargs)
    process.processOpen = processOpenDeferred.callback
    process.openFailed = processOpenDeferred.errback

    connection.openChannel(process)
    return processOpenDeferred