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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 remove(self, document_id, namespace, timestamp):
 """Removes document from Mongo The input is a python dictionary that represents a mongo document. The documents has ns and _ts fields. """

        database, coll = self._db_and_collection(namespace)

        meta_collection = self._get_meta_collection(namespace)

        doc2 = self.meta_database[meta_collection].find_one_and_delete(
            {self.id_field: document_id}
        )
        if doc2 and doc2.get("gridfs_id"):
            GridFS(self.mongo[database], coll).delete(doc2["gridfs_id"])
        else:
            self.mongo[database][coll].delete_one({"_id": document_id})