Kinds
.....

.. doxygenstruct:: pars::ev::fired

.. doxygenstruct:: pars::ev::sent

.. doxygenstruct:: pars::ev::received
.. doxygenstruct:: pars::ev::received< nngxx::msg >

.. doxygenstruct:: pars::ev::common_kind

.. doxygenstruct:: pars::ev::base_kind

.. doxygenstruct:: pars::ev::base_kind< kind_of, event_t >