def delete_timeline_entries_for_entity_model(model)
      Activr.registry.timeline_entities_for_model(model.class).each do |timeline_class, entities|
        entities.each do |entity_name|
          self.driver.delete_timeline_entries(timeline_class.kind, nil, :entities => { entity_name => model.id })
        end
      end
    end
def delete_timeline_entries_for_entity_model(model)
      Activr.registry.timeline_entities_for_model(model.class).each do |timeline_class, entities|
        entities.each do |entity_name|
          self.driver.delete_timeline_entries(timeline_class.kind, nil, :entities => { entity_name => model.id })
        end
      end
    end
Delete timeline entries referring to given entity model instance

 @param model [Object] Model instance