{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"from_known_layout,"}]}
    from_known_layout, interp_ok, mir_assign_valid_types, throw_ub,
    OffsetMode, PlaceTy, Pointer, Projectable, Provenance, Scalar, alloc_range, err_ub,
};