docs: def compound_statements(logical_line):
      """
      Compound statements (multiple statements on the same line) are
      generally discouraged.
      """
      line = logical_line
      found = line.find(':')
      if -1 < found < len(line) - 1:
          before = line[:found]
          if (before.count('{') <= before.count('}') and # {'a': 1} (dict)
              before.count('[') <= before.count(']') and # [1:2] (slice)
              not re.search(r'\blambda\b', before)):     # lambda x: x
              return found, "E701 multiple statements on one line (colon)"
      found = line.find(';')
      if -1 < found:
          return found, "E702 multiple statements on one line (semicolon)"