GInitable
@g_iface:
@init:
@initable:
@cancellable:
@error:
@Returns:
@object_type:
@cancellable:
@error:
@first_property_name:
@Varargs:
@Returns:
@object_type:
@first_property_name:
@var_args:
@cancellable:
@error:
@Returns:
@object_type:
@n_parameters:
@parameters:
@cancellable:
@error:
@Returns: