def METHOD_NAME():
    """Generates and writes the tileset for sewage network into 3D Tiles Next format if it exists.
    """
    sewage_file_path = "./data/glb/sewagenetwork.glb"
    sewagepath = Path(sewage_file_path)
    if not sewagepath.is_file():
        return
    bbox = compute_bbox(sewagepath)
    root_tile = make_root_tile(bbox=bbox, content={"uri": state.asset_url + "sewagenetwork.glb"})
    tileset = make_tileset(root_tile)
    jsonwriter(tileset, "tileset_sewage")