I have developed a custom grant type using the sample code provided by wso2 documentation https://is.docs.wso2.com/en/latest/learn/writing-a-custom-oauth-2.0-grant-type/. How we can map oidc claim to service provider and after generating access token based on the scope how can I get the claims while validating token. I have created custom token validator where I wanted to use scope claims wile validating token.