code: def test_bool_false(self, xp, sp):
      s = self.dummy_class(sp)(shape=(1, 1), nnz=0)
      return bool(s)
  
file_path: cupy/tests/cupyx_tests/scipy_tests/sparse_tests/test_base.py
imports: import unittest
  import pytest
  from cupy import testing
  from cupyx.scipy import sparse
label_desc: Use image node_id 5 for calling the TestSpmatrix obj's underlying member method code with example usage: obj.test_bool_false(xp, sp) and returns: bool