TryFindByPrimaryKey in Castle ActiveRecord

How do I search for a record by primary key, but return null if it doesn't exist?

public static T FindByPrimaryKeyOrDefault(object id)
{
  try
  {
    return ActiveRecordMediator<T>.FindByPrimaryKey(id);
  }
  catch (NotFoundException)
  {
   开发者_运维知识库 return null;
  }
}

ActiveRecordMediator<T>.FindByPrimaryKey(id, false);

I'll copy questions like these to the ActiveRecord wiki.