class RuboCop::Cop::Layout::MultilineOperationIndentation

def validate_config

def validate_config
  return unless style == :aligned && cop_config['IndentationWidth']
  raise ValidationError, 'The `Layout/MultilineOperationIndentation`' \
                        ' cop only accepts an `IndentationWidth` ' \
                        'configuration parameter when ' \
                        '`EnforcedStyle` is `indented`.'
end