'Creates an L3 metering label.
For a full list of available parameters, please refer to the official
API reference:
http://developer.openstack.org/api-ref/networking/v2/index.html#create-metering-label'

def create_metering_label(self, **kwargs):

    uri = '/metering/metering-labels'
    post_data = {'metering_label': kwargs}
    return self.create_resource(uri, post_data)
