def METHOD_NAME(self, entry_string):
    """
    Given a string describing a single
    entry strip that entry from the string
    and return it. Note the string MUST
    contain the @.
    Parameters
    ------------
        entry_string: str
    Returns
    ---------
    str
        The entry type
    str
        The shortened string
    """
    assert entry_string[0] == "@"
    entry_type = entry_string[1:entry_string.find('{')]
    assert entry_type in self.known_entries
    entry_string = entry_string[len(entry_type)+1:]
    return entry_type, entry_string