@utilities.arguments_not_none<EOL><INDENT>def remove_root_bin(self, bin_id):<DEDENT>
<EOL>if self._catalog_session is not None:<EOL><INDENT>return self._catalog_session.remove_root_catalog(catalog_id=bin_id)<EOL><DEDENT>return self._hierarchy_session.remove_root(id_=bin_id)<EOL>
Removes a root bin.

        arg:    bin_id (osid.id.Id): the ``Id`` of a bin
        raise:  NotFound - ``bin_id`` not a root
        raise:  NullArgument - ``bin_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*