Return a fully-qualified monitored_resource_descriptor string.

def monitored_resource_descriptor_path(cls, project, monitored_resource_descriptor):
        """Return a fully-qualified monitored_resource_descriptor string."""
        return google.api_core.path_template.expand(
            "projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}",
            project=project,
            monitored_resource_descriptor=monitored_resource_descriptor,
        )