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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _build_lv_grid_dict(network):
 """Creates dict of LV grids LV grid ids are used as keys, LV grid references as values. Parameters network: :class:`~.grid.network.Network` The eDisGo container object Returns ------- :obj:`dict` Format: {:obj:`int`: :class:`~.grid.grids.LVGrid`} """


    lv_grid_dict = {}
    for lv_grid in network.mv_grid.lv_grids:
        lv_grid_dict[lv_grid.id] = lv_grid
    return lv_grid_dict