You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: multiline_method_argument_line_breaks.rb
    path of file: ./repos/rubocop/lib/rubocop/cop/layout
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module RuboCop
  module Cop
    mod
    
        def on_send(node)
          return if node.method?(:[]=)

          args = node.arguments

          # If there is a trailing hash arg without explicit braces, like this:
          #
          #    method(1, 'key1' => value1, 'key2' => value2)
          #
          # ...then each key/value pair is treated as a method 'argument'
          # when determining where line breaks should appear.
          last_arg = args.last
          args = args[0...-1] + last_arg.children if last_arg&.hash_type? && !last_arg&.braces?

          check_line_breaks(node, args, ignore_last: ignore_last_element?)
        end