def sink(self, name, filter_=None, destination=None):
"""Creates a sink bound to the current client.
:type name: str
:param name: the name of the sink to be constructed.
:type filter_: str
:param filter_: (optional) the advanced logs filter expression
defining the entries exported by the sink. If not
passed, the instance should already exist, to be
refreshed via :meth:`Sink.reload`.
:type destination: str
:param destination: destination URI for the entries exported by
the sink. If not passed, the instance should
already exist, to be refreshed via
:meth:`Sink.reload`.
:rtype: :class:`google.cloud.logging.sink.Sink`
:returns: Sink created with the current client.
"""
return Sink(name, filter_, destination, client=self)
