Adds a "sub-feature" of type @type to the base feature @feature. This is used for features that can be extended with multiple different types. Eg, the authentication manager can be extended with subtypes of #SoupAuth.
Get the main Gtk struct
Tests if @feature has a "sub-feature" of type @type. See soup_session_feature_add_feature().
Removes the "sub-feature" of type @type from the base feature @feature. See soup_session_feature_add_feature().
An object that implement some sort of optional feature for #SoupSession.