extensions/typescript-language-features/src/tsServer/bufferSyncSupport.ts/BufferSynchronizer/open
class BufferSynchronizer:	public open(resource: vscode.Uri, args: Proto.OpenRequestArgs) {
		if (this.supportsBatching) {
			this.updatePending(resource, new OpenOperation(args));
		} else {
			this.client.executeWithoutWaitingForResponse('open', args);
		}
	}