src/vs/platform/files/common/fileService.ts/FileService/doPipeUnbufferedQueued
class FileService:	private async doPipeUnbufferedQueued(sourceProvider: IFileSystemProviderWithFileReadWriteCapability, source: URI, targetProvider: IFileSystemProviderWithFileReadWriteCapability, target: URI): Promise<void> {
		return targetProvider.writeFile(target, await sourceProvider.readFile(source), { create: true, overwrite: true, unlock: false });
	}