Gtk.FileChooser.prototype.unselect_filename

function unselect_filename(filename:filename):void {
    // Gjs wrapper for gtk_file_chooser_unselect_filename()
}

Unselects a currently selected filename. If the filename is not in the current directory, does not exist, or is otherwise not currently selected, does nothing.

Since 2.4

filename

the filename to unselect