title: Account Linking with google assistant not getting accessToken in apprequest
body: <p>I have implemented account linking in google actions. I've chosen OAuth with Implicit linking type. i got my account linked, but i'm not getting access-token in subsequent calls. In the google documentation says :&quot; After Google has obtained an access token for your service, Google will attach the token to subsequent calls to your Action as part of the AppRequest.&quot; The user information in the request should be in the following format:</p>
  <pre><code>{
  user : {
    &quot;idToken&quot;: string,
    &quot;profile&quot;: {
      object (UserProfile)
    },
    &quot;accessToken&quot;: string,
    &quot;permissions&quot;: [
      enum (Permission)
    ],
    &quot;locale&quot;: string,
    &quot;lastSeen&quot;: string,
    &quot;userStorage&quot;: string,
    &quot;packageEntitlements&quot;: [
      {
        object (PackageEntitlement)
      }
    ],
    &quot;userVerificationStatus&quot;: enum (UserVerificationStatus)
  }
  }
  </code></pre>
  <p>google apprequest format : <a href="https://developers.google.com/assistant/conversational/df-asdk/reference/webhook/rest/Shared.Types/AppRequest#User.FIELDS.access_token" rel="nofollow noreferrer">https://developers.google.com/assistant/conversational/df-asdk/reference/webhook/rest/Shared.Types/AppRequest#User.FIELDS.access_token</a></p>
  <p>but i'm getting the request which is not containing any accessToken.</p>
  <pre><code>{
  user:
     { locale: 'en-GB',
       params: {},
       accountLinkingStatus: 'LINKED',
       verificationStatus: 'VERIFIED',
       packageEntitlements: [],
       lastSeenTime: '2020-11-09T09:07:54Z' }
  } 
  </code></pre>
  <p>google account linking docs :<a href="https://developers.google.com/assistant/identity/oauth2?oauth=implicit#flow" rel="nofollow noreferrer">https://developers.google.com/assistant/identity/oauth2?oauth=implicit#flow</a></p>