module RuboCop::Cop::CheckLineBreakable

def shift_elements_for_heredoc_arg(node, elements, index)
  return index unless node.send_type? || node.array_type?
  heredoc_index = elements.index { |arg| arg.respond_to?(:heredoc?) && arg.heredoc? }
  return index unless heredoc_index
  return nil if heredoc_index.zero?
  heredoc_index >= index ? index : heredoc_index + 1
end