kAttrQueryInitialNumAttrs
static const char* kAttrQueryInitialNumAttrs = "_trk/qryinitnumattrs";
if (node.ReadAttr(kAttrQueryInitialNumAttrs, B_INT32_TYPE, 0,
if (node->ReadAttr(kAttrQueryInitialNumAttrs, B_INT32_TYPE, 0,
node->WriteAttr(kAttrQueryInitialNumAttrs, B_INT32_TYPE, 0,