fn stream(io_reader: *Io.Reader, w: *Io.Writer, limit: Io.Limit) Io.Reader.StreamError!usize
fn stream(io_reader: *Io.Reader, w: *Io.Writer, limit: Io.Limit) Io.Reader.StreamError!usize { const r: *Reader = @alignCast(@fieldParentPtr("interface", io_reader)); return streamMode(r, w, limit, r.mode); }