code: def lab(self):
      N = 30
      K = 2
      y = np.random.randint(0, K, size=N)
      lab = Datalab(data={"y": y}, label_name="y")
      return lab
  
file_path: cleanlab/tests/datalab/test_issue_finder.py
imports: import pytest
  import numpy
  from cleanlab.datalab.internal.issue_finder import IssueFinder
  from cleanlab import Datalab
label_desc: Use image node_id 1 for calling the TestIssueFinder obj's underlying member method code with example usage: obj.lab() and returns: lab