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: 20162812090716_add_missing_indexes.acts_as_taggable_on_engine.rb
    path of file: ./repos/pivorak-web-app/db/migrate
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# This migration comes from acts_as_taggable_on_engine (originally 6)
class AddMissingIndexes < ActiveRecord::Migration[5.0]
  def change
    add_index :taggings, 
    
  def change
    add_index :taggings, :tag_id
    add_index :taggings, :taggable_id
    add_index :taggings, :taggable_type
    add_index :taggings, :tagger_id
    add_index :taggings, :context

    add_index :taggings, %i[tagger_id tagger_type]
    add_index :taggings, %i[taggable_id taggable_type tagger_id context], name: 'taggings_idy'
  end