code: def includeme(config):
      
      api_key_authn_policy = APIKeyAuthenticationPolicy()
      config.include('openstax_accounts')
      openstax_authn_policy = config.registry.getUtility(
          IOpenstaxAccountsAuthenticationPolicy)
  
      # Set up api & user authentication policies.
      policies = [api_key_authn_policy, openstax_authn_policy]
      authn_policy = MultiAuthenticationPolicy(policies)
      config.set_authentication_policy(authn_policy)
  
      # Set up the authorization policy.
      authz_policy = ACLAuthorizationPolicy()
      config.set_authorization_policy(authz_policy)
docs: Configuration include fuction for this module