code: def _get_temp(self, content):
          
          temp = None
          for line in content.splitlines():
  
              # make sure there's both start and end line
              if not temp:
                  match = TEMP_NEEDLE.match(line)
                  if match:
                      temp = match.group(1).strip()
                      continue
              else:
                  match = TEMP_END_NEEDLE.match(line)
                  if match:
                      return temp
  
          raise IndexError(self.path)
docs: Get the string that points to a specific base16 scheme.