Interface Spec

A trigger that issues rendering.

This can be useful e.g. when component has multiple independent sub-views.

This can be one of the following:

• A path to component state part the renderer should track. The rendering would trigger only when the target state part is updated.
• Arbitrary event sender. The rendering would be triggered on any event from this sender.

A root state path is tracked when omitted.

When trigger is a root path (the default value), then the rendering will be triggered by any state update. Except for updates of sub-states inside RenderPath__root.