def least_role() -> Role:
        """
        Return the indy-sdk role of least privilege for an anchor (class) in building
        its cryptonym for the trust anchor to send to the ledger.

        :return: role of least privilege by anchor class
        """

        LOGGER.debug('BaseAnchor.least_role >>>')

        rv = Role.TRUST_ANCHOR

        LOGGER.debug('BaseAnchor.least_role <<< %s', rv)
        return rv