183                     Some(Ok(frame)) if frame.is_data() => this  in poll_decode()
185                         .put(frame.into_data().unwrap_or_else(|_| unreachable!())),  in poll_decode()
186                     Some(Ok(frame)) if frame.is_trailers() => {  in poll_decode()
223             Some(Ok(frame)) if frame.is_data() => {  in poll_encode()
224                 let mut data = frame.into_data().unwrap_or_else(|_| unreachable!());  in poll_encode()
233             Some(Ok(frame)) if frame.is_trailers() => {  in poll_encode()
234                 let trailers = frame.into_trailers().unwrap_or_else(|_| unreachable!());  in poll_encode()
451     let mut frame = BytesMut::with_capacity(len + FRAME_HEADER_SIZE);  in make_trailers_frame()  localVariable
452     frame.put_u8(GRPC_WEB_TRAILERS_BIT);  in make_trailers_frame()
453     frame.put_u32(len as u32);  in make_trailers_frame()
454     frame.put_slice(&trailers);  in make_trailers_frame()
456     frame.freeze()  in make_trailers_frame()