src/vs/platform/userDataSync/common/keybindingsSync.ts/KeybindingsInitializer/isEmpty
class KeybindingsInitializer:	private async isEmpty(): Promise<boolean> {
		try {
			const fileContent = await this.fileService.readFile(this.userDataProfilesService.defaultProfile.settingsResource);
			const keybindings = parse(fileContent.value.toString());
			return !isNonEmptyArray(keybindings);
		} catch (error) {
			return (<FileOperationError>error).fileOperationResult === FileOperationResult.FILE_NOT_FOUND;
		}
	}