Sets whether multiple files can be selected in the file chooser.
This is only relevant if the action is set to be gtk.types.FileChooserAction.Open or gtk.types.FileChooserAction.SelectFolder.
true if multiple files can be selected.
Deprecated: Use gtk.file_dialog.FileDialog instead
Sets whether multiple files can be selected in the file chooser.
This is only relevant if the action is set to be gtk.types.FileChooserAction.Open or gtk.types.FileChooserAction.SelectFolder.