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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 get_manhole_factory(namespace, **passwords):
 """Get a Manhole Factory """


    realm = manhole_ssh.TerminalRealm()
    realm.chainedProtocolFactory.protocolFactory = (
        lambda _: EnhancedColoredManhole(namespace)
    )

    p = portal.Portal(realm)
    p.registerChecker(
        checkers.InMemoryUsernamePasswordDatabaseDontUse(**passwords)
    )
    return manhole_ssh.ConchFactory(p)