stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p,
stream->parent_def_scope, 0, 0, "stream.packet.context");
if (!definition) {
stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p,
stream->parent_def_scope, 0, 0, "stream.packet.context");
if (!definition) {