setSearchEqualFunc   
  ⚠️ Deprecated ⚠️
This is deprecated since version 4.10.
Use class@Gtk.ListView or class@Gtk.ColumnView instead
---Sets the compare function for the interactive search capabilities; note that somewhat like strcmp() returning 0 for equality GtkTreeViewSearchEqualFunc returns false on matches.
Parameters
searchEqualFunc  
the compare function to use during the search