code: def get_what_follows_raw(s: str,
                           prefix: str,
                           onlyatstart: bool = True,
                           stripwhitespace: bool = True) -> Tuple[bool, str]:
      
      prefixstart = s.find(prefix)
      if ((prefixstart == 0 and onlyatstart) or
              (prefixstart != -1 and not onlyatstart)):
          # substring found
          resultstart = prefixstart + len(prefix)
          result = s[resultstart:]
          if stripwhitespace:
              result = result.strip()
          return True, result
      return False, ""
docs: Find the part of ``s`` that is after ``prefix``.
  
      Args:
          s: string to analyse
          prefix: prefix to find
          onlyatstart: only accept the prefix if it is right at the start of
              ``s``
          stripwhitespace: remove whitespace from the result
  
      Returns:
          tuple: ``(found, result)``