Return DNS quotas for the project associated with this client.

        See
        https://cloud.google.com/dns/api/v1/projects/get

        :rtype: mapping
        :returns: keys for the mapping correspond to those of the ``quota``
                  sub-mapping of the project resource.

def quotas(self):
        """Return DNS quotas for the project associated with this client.

        See
        https://cloud.google.com/dns/api/v1/projects/get

        :rtype: mapping
        :returns: keys for the mapping correspond to those of the ``quota``
                  sub-mapping of the project resource.
        """
        path = "/projects/%s" % (self.project,)
        resp = self._connection.api_request(method="GET", path=path)

        return {
            key: int(value) for key, value in resp["quota"].items() if key != "kind"
        }