def migrate(belstr: str) -> str:
bo.ast = bel.lang.partialparse.get_ast_obj(belstr, "<STR_LIT>")<EOL>return migrate_ast(bo.ast).to_string()<EOL>
Migrate BEL 1 to 2.0.0

    Args:
        bel: BEL 1

    Returns:
        bel: BEL 2