kAttrQueryInitialMime
node->WriteAttrString(kAttrQueryInitialMime, &label);
if (node->ReadAttrString(kAttrQueryInitialMime, &buffer) == B_OK)
= TargetModel()->Node()->GetAttrInfo(kAttrQueryInitialMime,
TargetModel()->Node()->ReadAttrString(kAttrQueryInitialMime,