pub unsafe extern "C" fn lyd_eval_xpath4(
    ctx_node: *const lyd_node,
    tree: *const lyd_node,
    cur_mod: *const lys_module,
    xpath: *const c_char,
    format: Type,
    prefix_data: *mut c_void,
    vars: *const lyxp_var,
    ret_type: *mut Type,
    node_set: *mut *mut ly_set,
    string: *mut *mut c_char,
    number: *mut u128,
    boolean: *mut ly_bool
) -> Type