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: search_indexes_prose_spec.rb
    path of file: ./repos/mongo-ruby-driver/spec/integration
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require 'spec_helper'

class SearchIndexHelper
  attr_reader :client, :collection_name

  def initialize(client)
    @cli
    
  def initialize(client)
    @client = client

    # https://github.com/mongodb/specifications/blob/master/source/index-management/tests/README.rst#id4
    # "...each test uses a randomly generated collection name.  Drivers may
    # generate this collection name however they like, but a suggested
    # implementation is a hex representation of an ObjectId..."
    @collection_name = BSON::ObjectId.new.to_s
  end