class RuboCop::Cop::Layout::IndentHeredoc

def correct_by_squiggly(node)
  return if target_ruby_version < 2.3
  lambda do |corrector|
    if heredoc_indent_type(node) == '~'
      adjust_squiggly(corrector, node)
    else
      adjust_minus(corrector, node)
    end
  end
end