code: def test_main_pipeline_many_valid(verbose=False, n=100):
      test_main_pipeline(verbose, n, valid_noise_matrix=True)
  
imports: import numpy
  from cleanlab.benchmarking import noise_generation
  import pytest
label_desc: Use image node_id 6 for calling a global function with example usage: test_main_pipeline_many_valid(verbose, n) without return types