code: def _fmt_args_kwargs(self, *some_args, **some_kwargs):
          
          if some_args:
              out_args = str(some_args).lstrip('(').rstrip(',)')
          if some_kwargs:
              out_kwargs = ', '.join([str(i).lstrip('(').rstrip(')').replace(', ',': ') for i in [
                      (k,some_kwargs[k]) for k in sorted(some_kwargs.keys())]])
  
          if some_args and some_kwargs:
              return out_args + ', ' + out_kwargs
          elif some_args:
              return out_args
          elif some_kwargs:
              return out_kwargs
          else:
              return ''
docs: Helper to convert the given args and kwargs into a string.