ownerID property Null safety
final
The identifier for the owner of the resource, if provided.
If this instance refers to the authorization of a resource owner, this value will be its identifying value. For example, in an application where a 'User' is stored in a database, this value would be the primary key of that user.
If this authorization does not refer to a specific resource owner, this value will be null.
Implementation
final int? ownerID;