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: po_linter_spec.rb
    path of file: ./repos/gitlabhq/spec/lib/gitlab/i18n
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require 'spec_helper'
require 'simple_po_parser'

# Disabling this cop to allow for multi-language examples in comments
# rubocop:disable Style/AsciiComments
RSpec.describe Gitlab::I18n::PoLinter do
  let(:linter) { described_class.new(po_path: po_path) }
  let(:po_path) { 'spec/fixt
    
  def fake_translation(msgid:, translation:, plural_id: nil, plurals: [])
    data = { msgid: msgid, msgid_plural: plural_id }

    if plural_id
      [translation, *plurals].each_with_index do |plural, index|
        allow(FastGettext::Translation).to receive(:n_).with(msgid, plural_id, index).and_return(plural)
        data.merge!("msgstr[#{index}]" => plural)
      end
    else
      allow(FastGettext::Translation).to receive(:_).with(msgid).and_return(translation)
      data[:msgstr] = translation
    end