extensions/typescript-language-features/src/tsServer/server.ts/ProcessBasedTsServer/getQueueingType
class ProcessBasedTsServer:	private static getQueueingType(
		command: string,
		lowPriority?: boolean
	): RequestQueueingType {
		if (ProcessBasedTsServer.fenceCommands.has(command)) {
			return RequestQueueingType.Fence;
		}
		return lowPriority ? RequestQueueingType.LowPriority : RequestQueueingType.Normal;
	}