code: def posarghelp(self, indent=0, maxindent=25, width=79):
          
          docs = []
          makelabel = lambda posarg: ' ' * indent + posarg.displayname + ': '
          helpindent = _autoindent([makelabel(p) for p in self.positional_args], indent, maxindent)
          for posarg in self.positional_args:
              label = makelabel(posarg)
              text = posarg.formatname + '. ' + posarg.docs
              wrapped = self._wrap_labelled(label, text, helpindent, width)
              docs.extend(wrapped)
          return '\n'.join(docs)
docs: Return user friendly help on positional arguments in the program.