pub fn write_hex(f: &mut Formatter<'_>, bytes: &[u8]) -> Result<(), Error>Expand description
Writes bytes into the formatter as a 0x-prefixed, lowercase hexadecimal string.
Useful for Display implementations that want compact, canonical hex output (e.g. in tracing
logs) without allocating an intermediate String. This mirrors the format produced by
bytes_to_hex_string, which only accepts fixed-size arrays.