Stops the downloading of a file. If a file has already been downloaded, does nothing. Request type for Tdjson#cancelDownloadFile.
Identifier of a file to stop downloading.
Optional
Pass true to stop downloading only if it hasn't been started, i.e. request hasn't been sent to server.
Stops the downloading of a file. If a file has already been downloaded, does nothing. Request type for Tdjson#cancelDownloadFile.