31         Ok(())  in write_u8()
42         Ok(())  in or_u8_at()
53         Ok(())  in add_u8_at()
64         Ok(())  in write_u8_at()
73         Ok(())  in write_u16()
79         Ok(())  in write_u24()
84         Ok(())  in write_u32()
89         Ok(())  in write_f64()
94         Ok(())  in write_u64()
99         Ok(())  in write()
107         Ok(())  in prepend()
119         Ok(())  in write_random_bytes()
206         Ok(())  in flush()
220             Ok(_) => {  in flush_timeout()
230         Ok(())  in flush_timeout()
260         if let Ok(val) = rv {  in test_write_vec()