Microsoft.IdentityModel.Tokens.TryReadJwtClaim
When JSON Web Token header or payload is being read claim by claim,
this delegate is called after all claims known to the library have been processed.
When called, the reader is positioned at the claim value.
public virtual IAsyncResult BeginInvoke(ref Utf8JsonReader reader, JwtSegmentType jwtSegmentType, string claimName, out object claimValue, AsyncCallback callback, object object)
public virtual bool EndInvoke(ref Utf8JsonReader reader, out object claimValue, IAsyncResult result)
public virtual bool Invoke(ref Utf8JsonReader reader, JwtSegmentType jwtSegmentType, string claimName, out object claimValue)