docstr: Test that the find_issues method works.
code: def test_find_issues(self, lab, pred_probs, issue_manager):
      """Test that the find_issues method works."""
      issue_manager.find_issues(pred_probs=pred_probs)
      issues, summary, info = (
          issue_manager.issues,
          issue_manager.summary,
          issue_manager.info,
      )
      assert isinstance(
          issues, pd.DataFrame
      ), "Issues should be a dataframe"
  
      assert isinstance(
          summary, pd.DataFrame
      ), "Summary should be a dataframe"
      assert summary["issue_type"].values[0] == "label"
      assert pytest.approx(summary["score"].values[0]) == 0.4
  
      assert isinstance(info, dict), "Info should be a dict"
      info_keys = info.keys()
      expected_keys = [
          "num_label_issues",
          "average_label_quality",
          "confident_joint",
          "classes_by_label_quality",
          "overlapping_classes",
          "py",
          "noise_matrix",
          "inverse_noise_matrix",
      ]
      assert all(
          [key in info_keys for key in expected_keys]
      ), f"Info should have the right keys, but is missing {set(expected_keys) - set(info_keys)}"
      # Compare results with low_memory=True
      clean_learning_kwargs = {"low_memory": True}
      issue_manager_lm = LabelIssueManager(
          datalab=lab, clean_learning_kwargs=clean_learning_kwargs
      )
      issue_manager_lm.find_issues(pred_probs=pred_probs)
      issues_lm = issue_manager_lm.issues
      # jaccard similarity
      intersection = len(list(set(issues).intersection(set(issues_lm))))
      union = len(set(issues)) + len(set(issues_lm)) - intersection
      assert float(intersection) / union > 0.95
  
file_path: cleanlab/tests/datalab/issue_manager/test_label.py
imports: import numpy
  import pandas
  import pytest
  from cleanlab.datalab.internal.issue_manager.label import LabelIssueManager
label_desc: Use image node_id 2 for calling the TestLabelIssueManager obj's underlying member method code with example usage: obj.test_find_issues(lab, pred_probs, issue_manager) without return types