extensions/typescript-language-features/src/typescriptServiceClient.ts/TypeScriptServiceClient/executeImpl
class TypeScriptServiceClient:	private executeImpl(command: keyof TypeScriptRequests, args: any, executeInfo: { isAsync: boolean, token?: vscode.CancellationToken, expectsResult: boolean, lowPriority?: boolean, requireSemantic?: boolean }): Array<Promise<ServerResponse.Response<Proto.Response>> | undefined> {
		this.bufferSyncSupport.beforeCommand(command);
		const runningServerState = this.service();
		return runningServerState.server.executeImpl(command, args, executeInfo);
	}