# nmigen: UnusedElaboratable=no
import unittest
-from nmigen import *
-from nmigen.hdl.rec import *
-from nmigen.back.pysim import *
+from nmigen import Module, Record, Elaboratable
+from nmigen.hdl.rec import Layout, DIR_FANOUT, DIR_FANIN
+from nmigen.back.pysim import Simulator, Delay, Tick
from ..wishbone import *