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