13     buffer: BytesMut,  field
17         Self { buffer: input }  in new()
21         let remaining_mut = self.buffer.remaining_mut();  in extend_from_slice()
26             self.buffer.reserve(additional);  in extend_from_slice()
29         self.buffer.extend_from_slice(extend)  in extend_from_slice()
33         if self.buffer.len() < bytes_num {  in read_bytes()
38         Ok(self.buffer.split_to(bytes_num))  in read_bytes()
42         if self.buffer.len() < bytes_num {  in advance_bytes()
49         Ok(self.buffer.clone().split_to(bytes_num))  in advance_bytes()
133         Ok(*self.buffer.get(index).unwrap())  in get()
137         self.buffer.len()  in len()
145         self.buffer.split_to(self.buffer.len())  in extract_remaining_bytes()
148         self.buffer.clone()  in get_remaining_bytes()