code: def sparse_nn_data():
      return sparse.random(1000, 50, density=0.5, format="csr")
  
file_path: pynndescent/pynndescent/tests/conftest.py
imports: import os
  import pytest
  import numpy
  from scipy import sparse
label_desc: Use image node_id 7 for calling a global function with example usage: sparse_nn_data() and returns: sparse