type CustomClaimType = IdTokenClaims<EmptyAdditionalClaims, CoreGenderClaim>;
struct CustomClaimType {Show 13 fields
    issuer: IssuerUrl,
    audiences: Vec<Audience>,
    expiration: DateTime<Utc>,
    issue_time: DateTime<Utc>,
    auth_time: Option<DateTime<Utc>>,
    nonce: Option<Nonce>,
    auth_context_ref: Option<AuthenticationContextClass>,
    auth_method_refs: Option<Vec<AuthenticationMethodReference>>,
    authorized_party: Option<ClientId>,
    access_token_hash: Option<AccessTokenHash>,
    code_hash: Option<AuthorizationCodeHash>,
    standard_claims: StandardClaims<CoreGenderClaim>,
    additional_claims: FilteredFlatten<StandardClaims<CoreGenderClaim>, EmptyAdditionalClaims>,
 }
§standard_claims: StandardClaims<CoreGenderClaim>