For HMR: a component mount itself to the subapp/pipeline
Hot module reload (HMR) support
For HMR: a component unmount itself from the subapp/pipeline
Actually render the subapp (client or server side). subapp must've been prepared.
Check if pipeline is prepared
Optional reload: booleanKick off executing a subapp's features to prepare it for rendering
Async wait for the subapp's prepare to finish
Manage the steps of rendering a subapp
Each instance of this represents a unique rendering of a given subapp.
It should contain all the information and options for the instance only.