calculateExpiresAt method
Calculates the expiry date of the access token from expiresIn and
overrideCreationTime.
Implementation
DateTime? calculateExpiresAt({DateTime? overrideCreationTime}) {
final expiresIn = this.expiresIn;
if (expiresIn == null) {
return null;
}
final refDate = overrideCreationTime ?? creationTime;
return refDate.add(expiresIn);
}