Gtk.FileChooser.prototype.set_select_multiple

function set_select_multiple(select_multiple:Boolean):void {
    // Gjs wrapper for gtk_file_chooser_set_select_multiple()
}

Sets whether multiple files can be selected in the file selector. This is only relevant if the action is set to be Gtk.FileChooserAction.open or Gtk.FileChooserAction.select_folder.

Since 2.4