assert fails

[markmeeus]

Error: {:assert_error, "assertion failed"} {"unexpected error (you should not see this)", {{:luerl_lib_basic, :assert, :undefined}, [false], [file: "luerl_lib_basic.erl"]}} at 15: ()

[markmeeus]

this should also work:
assert(res.status == 201, {t="ola"})

=> 2nd argument used as message

[markmeeus]

https://www.educba.com/lua-assert/