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: users_controller.rb
    path of file: ./repos/brakeman/test/apps/rails7/app/controllers
    
    the code of the file until where you have to start completion: class UsersController < ApplicationController
  def redirect_to_last!
    redirect_to User.last!
  en
    
  def search_books
    # Should not warn - search limited appropriately
    Book.ransack(params[:q])

    # Low confidence because no idea what `some_book` is
    some_book.things.ransack(params[:q])
  end