def METHOD_NAME(self):
    meta = self.db.put(BytesIO(b"content"), meta=self.new_meta())
    with self.assertRaises(TypeError):
        self.db.delete()
    with self.db.get(meta=meta) as fh:
        self.assertEqual(fh.read(), b"content")
    self.assertTrue(self.db.delete(key=meta.key))