code: def unescape(b, encoding):
      '''Unescape all string and unicode literals in bytes.'''
      return string_literal_re.sub(
          lambda m: unescape_string_literal(m.group(), encoding),
          b
      f unescape(b, encoding):
      '''Unescape all string and unicode literals in bytes.'''
      return string_literal_re.sub(
          lambda m: unescape_string_literal(m.group(), encoding),
          b
      )
docs: Unescape all string and unicode literals in bytes.