code: function OpenIDStrategy (provider, verify) {
    this.provider = provider
    this.name = provider.id
    if (!provider.returnURL) {
      provider.returnURL = provider.callbackURL
    }
    Strategy.call(this, provider, verify)
    this.client = provider
    this.verify = verify
  }
docs: OpenIDStrategy
  
  Provider is an object defining the details of the authentication API.
  Client is an object containing provider registration info and options.
  Verify is the Passport callback to invoke after authenticating