src/vs/workbench/contrib/welcome/gettingStarted/browser/gettingStartedService.ts/GettingStartedService/markWalkthroughOpened
class GettingStartedService:	markWalkthroughOpened(id: string) {
		const walkthrough = this.gettingStartedContributions.get(id);
		const prior = this.metadata.get(id);
		if (prior && walkthrough && walkthrough.content.type === 'steps') {
			this.metadata.set(id, { ...prior, manaullyOpened: true, stepIDs: walkthrough.content.steps.map(s => s.id) });
		}
		this.storageService.store(walkthroughMetadataConfigurationKey, JSON.stringify([...this.metadata.entries()]), StorageScope.GLOBAL, StorageTarget.USER);
	}