Creates a new #PanelSession from a #GVariant.
This creates a new #PanelSession instance from a previous session which had been serialized to variant.
a #GVariant from panel.session.Session.toVariant
a #PanelSession
ErrorWrap
Creates a new #PanelSession from a #GVariant.
This creates a new #PanelSession instance from a previous session which had been serialized to variant.