code: def test_manager_found_in_registry(self):
      from cleanlab.datalab.internal.issue_manager_factory import (
          REGISTRY,
      )
  
      error_msg = "RegressionLabelIssueManager should be registered to the regression task as 'label'"
      assert (
          REGISTRY["regression"].get("label")
          == RegressionLabelIssueManager
      ), error_msg
  
imports: import numpy
  import pandas
  import pytest
  from cleanlab import Datalab
  from cleanlab.datalab.internal.issue_manager.regression.label import RegressionLabelIssueManager
label_desc: Use image node_id 1 for calling the TestRegressionLabelIssueManager obj's underlying member method code with example usage: obj.test_manager_found_in_registry() without return types