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: stanza_grouping.rb
    path of file: ./repos/brew/Library/Homebrew/rubocops/cask
    
    the code of the file until where you have to start completion: require "forwardable"

module RuboCop
  module Cop
    module Cask
      # This cop checks that a cask's stanzas are grouped correctly.
      # See https://github.com/Homebrew/homeb
    
        def autocorrect(range)
          lambda do |corrector|
            case line_ops[range.line - 1]
            when :insert
              corrector.insert_before(range, "\n")
            when :remove
              corrector.remove(range)
            end
          end