@utilities.arguments_not_none<EOL><INDENT>def set_authority(self, authority):<DEDENT>
raise errors.Unimplemented()<EOL>
Sets the authority.

        arg:    authority (string): the authority
        raise:  InvalidArgument - ``authority`` is invalid
        raise:  NoAccess - ``authority`` cannot be modified
        raise:  NullArgument - ``authority`` is ``null``
        *compliance: mandatory -- This method must be implemented.*