src/vs/workbench/contrib/welcome/gettingStarted/browser/gettingStarted.ts/GettingStartedPage/readAndCacheSVGFile
class GettingStartedPage:	private readAndCacheSVGFile(path: URI): Promise<string> {
		if (!this.svgCache.has(path)) {
			this.svgCache.set(path, (async () => {
				try {
					const bytes = await this.fileService.readFile(path);
					return bytes.value.toString();
				} catch (e) {
					this.notificationService.error('Error reading svg document at `' + path + '`: ' + e);
					return '';
				}
			})());
		}
		return assertIsDefined(this.svgCache.get(path));

	}