code: def check_one_liners(self, definition, docstring):
          
          if docstring:
              lines = ast.literal_eval(docstring).split('\n')
              if len(lines) > 1:
                  non_empty_lines = sum(1 for l in lines if not is_blank(l))
                  if non_empty_lines == 1:
                      return violations.D200(len(lines))
docs: D200: One-liner docstrings should fit on one line with quotes.
  
          The closing quotes are on the same line as the opening quotes.
          This looks better for one-liners.