[ { "BlackBox" :
    { "name"      : "Clash.XException.seqX"
    , "type"      : "seqX :: a -> b -> b"
    , "templateE" : "~ARG[1]"
    }
  }
, { "BlackBox" :
    { "name"      : "Clash.XException.errorX"
    , "type"      : "errorX :: HasCallStack -> String -> a"
    , "templateE" : "~ERRORO"
    }
  }
]