src/vs/editor/contrib/inlineCompletions/browser/ghostTextModel.ts/DelegatingModel/ghostText
class DelegatingModel:	public get ghostText(): GhostText | GhostTextReplacement | undefined {
		if (!this.hasCachedGhostText) {
			this.cachedGhostText = this.currentModelRef.value?.object?.ghostText;
			this.hasCachedGhostText = true;
		}
		return this.cachedGhostText;
	}