old_contents: RESERVED_NAMES = {
      'def',
      'pass',
      'return',
      'class',
      'interface',
      'data',
      'if',
      'elif',
      'else',
      'or',
      'and',
      'not',
      'for',
      'true',
      'false',
  }
  
  RESERVED_CLASSES = set()
  
new_contents: RESERVED_NAMES = {
      'def',
      'pass',
      'return',
      'class',
      'interface',
      'data',
      'static',
      'public',
      'private',
      'protected',
      'module',
      'if',
      'elif',
      'else',
      'or',
      'and',
      'not',
      'for',
      'true',
      'false',
  }
  
  RESERVED_CLASSES = set()
  
subject: Update list of reserved tokens