::  ping: send atom
::
::::  /hoon/ping/hood/gen
  ::
/?    310
:-  %say
|=  $:  {now/@da eny/@ bec/beak} 
        {{exp/@ud ~} ~}
    ==
=+  rab=(~(raw og eny) (bex exp))
~&  [%random-bytes (met 3 rab) `@p`(mug rab)]
atom+rab