src/vs/editor/contrib/hover/browser/markdownHoverParticipant.ts/MarkdownHoverParticipant/createLoadingMessage
class MarkdownHoverParticipant:	public createLoadingMessage(anchor: HoverAnchor): MarkdownHover | null {
		return new MarkdownHover(this, anchor.range, [new MarkdownString().appendText(nls.localize('modesContentHover.loading', "Loading..."))], 2000);
	}