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: todos_controller.rb
    path of file: ./repos/todomvc_rails_on_stimulus/app/controllers
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class TodosController < ApplicationController
  # helper_method :filtering_params

  def index
    load_todos
  end

  def create
    flash[:alert
    
  def update_many
    toggle = params[:toggle] == 'true'
    if Todo.belonging_to(session_user).completed(!toggle).each { |todo| todo.update(completed: toggle) }
      head :ok
    else
      flash[:alert] = 'Unable to update tasks'
      load_and_render_index
    end