private C8oPromiseFailSync <T> Progress(C8oOnProgress c8oOnProgress, bool ui)
{
if (nextPromise != null)
{
return(nextPromise.Progress(c8oOnProgress, ui));
}
else
{
c8oProgress = new KeyValuePair <C8oOnProgress, bool>(c8oOnProgress, ui);
nextPromise = new C8oPromise <T>(c8o);
return(nextPromise);
}
}