Weights

    pub const Weights = extern struct {
        ptr: [*]const Weight,
        len: usize,

        pub fn toSlice(s: Weights) []const Weight {
            return s.ptr[0..s.len];
        }

        pub fn fromSlice(s: []const Weight) Weights {
            return .{ .ptr = s.ptr, .len = s.len };
        }
    }