def get_registration(self, path):
        """
        Returns registration item for specified path.

        If an email template is not registered, this will raise NotRegistered.
        """
        if not self.is_registered(path):
            raise NotRegistered("Email template not registered")
        return self._registry[path]
Returns registration item for specified path.

        If an email template is not registered, this will raise NotRegistered.