Gtk.TreeView.prototype.set_enable_search

function set_enable_search(enable_search:Boolean):void {
    // Gjs wrapper for gtk_tree_view_set_enable_search()
}

If enable_search is set, then the user can type in text to search through the tree interactively (this is sometimes called "typeahead find").

Note that even if this is false, the user can still initiate a search using the "start-interactive-search" key binding.