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: paddle_billing_controller.rb
    path of file: ./repos/pay/app/controllers/pay/webhooks
    
    the code of the file until where you have to start completion: module Pay
  module Webhooks
    class PaddleBillingController < Pay::ApplicationController
      if Rails.application.config.a
    
      def create
        if valid_signature?(request.headers["Paddle-Signature"])
          queue_event(verify_params.as_json)
          head :ok
        else
          head :bad_request
        end