code: def test_sparse_not_supported(optimizer_class):
      assert_sparse_not_supported(optimizer_class)
  
file_path: pytorch-optimizer/tests/test_param_validation.py
imports: import pytest
  import torch
  import torch_optimizer
label_desc: Use image node_id 2 for calling a global function with example usage: test_sparse_not_supported(optimizer_class) without return types