@abc.abstractmethod<EOL><INDENT>def get_assignable_bin_ids(self, bin_id):<DEDENT>
return<EOL>
Gets a list of bins including and under the given bin node in which any resource can be assigned.

        :param bin_id: the ``Id`` of the ``Bin``
        :type bin_id: ``osid.id.Id``
        :return: list of assignable bin ``Ids``
        :rtype: ``osid.id.IdList``
        :raise: ``NullArgument`` -- ``bin_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request

        *compliance: mandatory -- This method must be implemented.*