def list(self):
<EOL>return self.db.search(Query().name.matches('<STR_LIT>'))<EOL>
Return a list of all keys (not just key names, but rather the keys
        themselves).

        e.g.
         {u'created_at': u'2016-10-10 08:31:53',
          u'description': None,
          u'metadata': None,
          u'modified_at': u'2016-10-10 08:31:53',
          u'name': u'aws',
          u'uid': u'459f12c0-f341-413e-9d7e-7410f912fb74',
          u'value': u'the_value'},
         {u'created_at': u'2016-10-10 08:32:29',
          u'description': u'my gcp token',
          u'metadata': {u'owner': u'nir'},
          u'modified_at': u'2016-10-10 08:32:29',
          u'name': u'gcp',
          u'uid': u'a51a0043-f241-4d52-93c1-266a3c5de15e',
          u'value': u'the_value'}]