This is a SourceForge helper class.
Just import the sourceforge.ps1 file:
. '.\sourceforge.ps1'
Then, profit ...
$winscp = [SourceForge]::new('winscp')
$winscp.LatestVersion()
$winscp.LatestHash()
$filezilla = [SourceForge]::new('filezilla')
$filezilla.LatestVersion()
$filezilla.LatestHash()