code: def setUp(self) -> None:
      if not isinstance(Device[Device.DEFAULT], Compiled):
          raise unittest.SkipTest("only test for compiled backends")
  
file_path: tinygrad/test/test_search.py
imports: import unittest
  from tinygrad.codegen.linearizer import Linearizer
  from tinygrad.features.search import time_linearizer
  from tinygrad.device import Compiled, Device, Buffer
  from tinygrad.ops import LoadOps
  from tinygrad.tensor import Tensor
label_desc: Use image node_id 1 for calling the TestTimeLinearizer obj's underlying member method code with example usage: obj.setUp() without return types