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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_file(self, **kwargs):
 """ Return the FSEntry that matches parameters. :param str file_uuid: UUID of the target FSEntry. :param str label: structMap LABEL of the target FSEntry. :param str type: structMap TYPE of the target FSEntry. :returns: :class:`FSEntry` that matches parameters, or None. """

        # TODO put this in a sqlite DB so it can be queried efficiently
        # TODO handle multiple matches (with DB?)
        # TODO check that kwargs are actual attrs
        for entry in self.all_files():
            if all(value == getattr(entry, key) for key, value in kwargs.items()):
                return entry
        return None