<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def from_url(cls, url, db=None, **kwargs):
 """ Return a Redis client object configured from the given URL For example:: redis://[:password]@localhost:6379/0 rediss://[:password]@localhost:6379/0 unix://[:password]@/path/to/socket.sock?db=0 Three URL schemes are supported: - ```redis://`` <http://www.iana.org/assignments/uri-schemes/prov/redis>`_ creates a normal TCP socket connection - ```rediss://`` <http://www.iana.org/assignments/uri-schemes/prov/rediss>`_ creates a SSL wrapped TCP socket connection - ``unix://`` creates a Unix Domain Socket connection There are several ways to specify a database number. The parse function will return the first specified option: 1. A ``db`` querystring option, e.g. redis://localhost?db=0 2. If using the redis:// scheme, the path argument of the url, e.g. redis://localhost/0 3. The ``db`` argument to this function. If none of these options are specified, db=0 is used. Any additional querystring arguments and keyword arguments will be passed along to the ConnectionPool class's initializer. In the case of conflicting arguments, querystring arguments always win. """

        connection_pool = ConnectionPool.from_url(url, db=db, **kwargs)
        return cls(connection_pool=connection_pool)