code: def test_round_trip_float():
      arr = np.zeros((), np.float64)
      arr[()] = 37.2
      assert m.round_trip_float(arr) == 37.2
  
imports: import pytest
  import env
  from pybind11_tests import numpy_array
label_desc: Use image node_id 35 for calling a global function with example usage: test_round_trip_float() without return types