GFileIface.measureDiskUsage

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
struct GFileIface
extern (C)
int function(GFile* file, GFileMeasureFlags flags, GCancellable* cancellable, GFileMeasureProgressCallback progressCallback, void* progressData, ulong* diskUsage, ulong* numDirs, ulong* numFiles, GError** error) measureDiskUsage;

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