code: def test_protein_ligand_complex_notebook():
      nb, errors = _notebook_read(
          "protein_ligand_complex_notebook.ipynb"
      )
      assert errors == []
  
file_path: deepchem/examples/notebooks/tests.py
imports: import os
  import subprocess
  import tempfile
  import nbformat
label_desc: Use image node_id 2 for calling a global function with example usage: test_protein_ligand_complex_notebook() without return types