src/vs/workbench/services/userDataProfile/browser/userDataProfileImportExportService.ts/FileUserDataProfileContentHandler/readProfile
class FileUserDataProfileContentHandler:	async readProfile(uri: URI, token: CancellationToken): Promise<string | null> {
		if (await this.fileService.canHandleResource(uri)) {
			return (await this.fileService.readFile(uri, undefined, token)).value.toString();
		}
		return null;
	}