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: request_id.rb
    path of file: ./repos/sentry-ruby/sentry-ruby/lib/sentry/utils
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Sentry
  module Utils
    module 
    
      def self.read_from(env)
        REQUEST_ID_HEADERS.each do |key|
          request_id = env[key]
          return request_id if request_id
        end
        nil
      end