code: def test_configuration(self):
      exploit_configs = [
          dict(
              of_type="exploitstub",
              some="args",
              rval=1,
              should_receive=None,
              skip=True,
          ),
          dict(
              of_type="exploitstub",
              other="args",
              rval=None,
              should_receive="something",
              skip=False,
          ),
      ]
      exploit = PipelineExploit(exploit_configs)
  
      assert exploit.configuration == dict(
          of_type="pipelineexploit", exploit_configs=exploit_configs
      )
  
imports: import numpy
  import pytest
  from base import RNGStub, TrialStub
  from orion.algo.pbt.exploit import BacktrackExploit, PipelineExploit, TruncateExploit
  from orion.algo.pbt.pbt import Lineages
label_desc: Use image node_id 3 for calling the TestPipelineExploit obj's underlying member method code with example usage: obj.test_configuration() without return types