GetDescriptor.
        [Preview API] Resolve a storage key to a descriptor
        :param str storage_key: Storage key of the subject (user, group, scope, etc.) to resolve
        :rtype: :class:`<GraphDescriptorResult> <azure.devops.v5_1.graph.models.GraphDescriptorResult>`

def get_descriptor(self, storage_key):
        """GetDescriptor.
        [Preview API] Resolve a storage key to a descriptor
        :param str storage_key: Storage key of the subject (user, group, scope, etc.) to resolve
        :rtype: :class:`<GraphDescriptorResult> <azure.devops.v5_1.graph.models.GraphDescriptorResult>`
        """
        route_values = {}
        if storage_key is not None:
            route_values['storageKey'] = self._serialize.url('storage_key', storage_key, 'str')
        response = self._send(http_method='GET',
                              location_id='048aee0a-7072-4cde-ab73-7af77b1e0b4e',
                              version='5.1-preview.1',
                              route_values=route_values)
        return self._deserialize('GraphDescriptorResult', response)