{ "": {"type": "export", "target": "data", "flexible_config": ["COUNT"]}
, "data":
  { "type": "generic"
  , "arguments_config": ["COUNT"]
  , "out_dirs": ["data"]
  , "cmds":
    [ { "type": "join"
      , "$1":
        [ "COUNT="
        , {"type": "join_cmd", "$1": [{"type": "var", "name": "COUNT"}]}
        ]
      }
    , "mkdir -p data"
    , "for i in `seq 1 $COUNT`"
    , "do"
    , "  seq 1 $i > data/count$i.txt"
    , "done"
    ]
  }
}