get_label

Fetches the text from a label widget.

This is including any embedded underlines indicating mnemonics and Pango markup, as set by [method@Gtk.Expander.set_label]. If the label text has not been set the return value will be null. This will be the case if you create an empty button with Button to use as a container.

Parameters:

this	a `GtkExpander`

Returns:

The text of the label widget. This string is owned by the widget and must not be modified or freed.