Identifier of the currently selected task step, used to preserve expansion across live polls.
A callback method that is invoked immediately after the default change detector has checked data-bound properties if at least one has changed, and before the view and content children are checked.
Optional_changes: { [propName: string]: SimpleChange<any> }Optionalparent: string
Optional task step entity/snapshot. Supplies
ID,Status,InputPayload, andOutputPayloadwhen those granular inputs are not bound separately.