ProgressCallback typedef
A callback that can be used to report progress.
count
is the current count of bytes received / sent.
total
is the total count of bytes to receive / send.
total
might be -1 when it is unknown (e.g. missing Content-Length header).
Note: This is currently only implemented for byte(stream) requests and responses.
Implementation
typedef ProgressCallback = void Function(int count, int total);