• action_type : gr_block_gw_message_type
• cpm_type : gr_cpm , gr::analog::cpm
• seriousness : gr_error_handler
• state : gr_block_executor
• tag_propagation_policy_t : gr_block
• tb_state : gr_top_block_impl
• vcolor : gr_basic_block
• win_type : gr_firdes , gr::filter::firdes