func (api *API) InstanceMetricLocator(href string) *InstanceMetricLocator {
	return &InstanceMetricLocator{Href(href), api}
}
func (api *API) InstanceMetricLocator(href string) *InstanceMetricLocator {
	return &InstanceMetricLocator{Href(href), api}
}
// InstanceMetricLocator builds a locator from the given href.