src/vs/platform/userDataSync/common/keybindingsSync.ts/KeybindingsSynchroniser/hasLocalData
class KeybindingsSynchroniser:	async hasLocalData(): Promise<boolean> {
		try {
			const localFileContent = await this.getLocalFileContent();
			if (localFileContent) {
				const keybindings = parse(localFileContent.value.toString());
				if (isNonEmptyArray(keybindings)) {
					return true;
				}
			}
		} catch (error) {
			if ((<FileOperationError>error).fileOperationResult !== FileOperationResult.FILE_NOT_FOUND) {
				return true;
			}
		}
		return false;
	}