code: def test_nullary_function(nullary_func_fixture):
      # XXX the Python compute layer API doesn't let us override batch_length,
      # so only test with the default value of 1.
      check_scalar_function(
          nullary_func_fixture, [], run_in_dataset=False, batch_length=1
      )
  
imports: import pytest
  import numpy
  import pyarrow
  from pyarrow import compute
label_desc: Use image node_id 24 for calling a global function with example usage: test_nullary_function(nullary_func_fixture) without return types