def has_role(self, role):
        """
        Returns `True` if the user identifies with the specified role.

        :param role: A role name or :class:`Role` instance
        """
        if isinstance(role, str):
            return role in (role.name for role in self.roles)
        else:
            return role in self.roles
Returns `True` if the user identifies with the specified role.

        :param role: A role name or :class:`Role` instance