mp_units::get_common_quantity_spec

[[nodiscard]]
consteval
QuantitySpec auto
get_common_quantity_spec(
    auto q1,
    auto q2,
    auto q3,
    auto... rest)
requires requires { mp_units::get_common_quantity_spec(mp_units::get_common_quantity_spec(q1, q2), q3, rest...); };