docs: def import_hexcap():
      """Imports a tcpdump like hexadecimal view
  
      e.g: exported via hexdump() or tcpdump or wireshark's "export as hex"
      """
      re_extract_hexcap = re.compile(r"^((0x)?[0-9a-fA-F]{2,}[ :\t]{,3}|) *(([0-9a-fA-F]{2} {,2}){,16})")  # noqa: E501
      p = ""
      try:
          while True:
              line = input().strip()
              if not line:
                  break
              try:
                  p += re_extract_hexcap.match(line).groups()[2]
              except Exception:
                  warning("Parsing error during hexcap")
                  continue
      except EOFError:
          pass
  
      p = p.replace(" ", "")
      return hex_bytes(p)