Function cpp_std::swap_2_u32_string

pub unsafe fn swap_2_u32_string(
    lhs: impl CastInto<MutRef<U32String>>, 
    rhs: impl CastInto<MutRef<U32String>>
)

Calls C++ function: void std::swap(std::basic_string<char32_t, std::char_traits<char32_t>, std::allocator<char32_t>>& __lhs, std::basic_string<char32_t, std::char_traits<char32_t>, std::allocator<char32_t>>& __rhs).