'Updates a network.
For a full list of available parameters, please refer to the official
API reference:
http://developer.openstack.org/api-ref/networking/v2/index.html#update-network'

def update_network(self, network_id, **kwargs):

    uri = ('/networks/%s' % network_id)
    post_data = {'network': kwargs}
    return self.update_resource(uri, post_data)
