code: def test_external_float_():
      r1 = m.square_float_(2.0)
      assert r1 == 4.0
  
imports: import contextlib
  import sys
  import types
  import pytest
  import env
  from pybind11_tests import detailed_error_messages_enabled
  from pybind11_tests import pytypes
label_desc: Use image node_id 46 for calling a global function with example usage: test_external_float_() without return types