Pull one local maildir into another.

    The source need not be an md folder (it need not have a store). In
    this case filepull is kind of an import.

def filepull(maildir, localmaildir, noop=False, verbose=False, filterfile=None):
    """Pull one local maildir into another.

    The source need not be an md folder (it need not have a store). In
    this case filepull is kind of an import.
    """
    store = _Store(maildir)
    _pull(store, localmaildir, noop, verbose, filterfile)