def METHOD_NAME(n_node, b_obj):
    """Export range lod data for for the children of b_obj, as a
    NiRangeLODData block on n_node.
    """
    # create range lod data object
    n_range_data = block_store.create_block("NiRangeLODData", b_obj)
    n_node.lod_level_data = n_range_data
    # get the children
    b_children = b_obj.children
    # set the data
    n_node.num_lod_levels = len(b_children)
    n_range_data.num_lod_levels = len(b_children)
    n_node.reset_field("lod_levels")
    n_range_data.reset_field("lod_levels")
    for b_child, n_lod_level, n_rd_lod_level in zip(b_children, n_node.lod_levels, n_range_data.lod_levels):
        n_lod_level.near_extent = b_child["near_extent"]
        n_lod_level.far_extent = b_child["far_extent"]
        n_rd_lod_level.near_extent = n_lod_level.near_extent
        n_rd_lod_level.far_extent = n_lod_level.far_extent