@classmethod<EOL><INDENT>def pool(self, host, port, db, pools={}, **options):<DEDENT>
key = (host, port, db)<EOL>rval = pools.get(key)<EOL>if not isinstance(rval, ConnectionPool):<EOL><INDENT>rval = ConnectionPool(host=host, port=port, db=db, **options)<EOL>pools[key] = rval<EOL><DEDENT>return rval<EOL>
Fetch a redis conenction pool for the unique combination of host
and port. Will create a new one if there isn't one already.