init

pub fn init(reader: *Reader, limit: Limit, buffer: []u8) Limited {
    return .{
        .unlimited = reader,
        .remaining = limit,
        .interface = .{
            .vtable = &.{
                .stream = stream,
                .discard = discard,
            },
            .buffer = buffer,
            .seek = 0,
            .end = 0,
        },
    };
}