code: def test_independent(self):
      assert self.independent_usages == len(self.param1_vals) * len(
          self.param2_vals
      )
  
imports: import os
  import sys
  import pytest
  import tvm.testing
label_desc: Use image node_id 2 for calling the TestJointParameter obj's underlying member method code with example usage: obj.test_independent() without return types