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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 sshpull(host, maildir, localmaildir, noop=False, verbose=False, filterfile=None):
 """Pull a remote maildir to the local one. """

    store = _SSHStore(host, maildir)
    _pull(store, localmaildir, noop, verbose, filterfile)