code: def test_throw_nested_exception():
      with pytest.raises(RuntimeError) as excinfo:
          m.throw_nested_exception()
      assert str(excinfo.value) == "Outer Exception"
      assert str(excinfo.value.__cause__) == "Inner Exception"
  
imports: import sys
  import pytest
  import env
  import pybind11_cross_module_tests
  import pybind11_tests
  from pybind11_tests import exceptions
label_desc: Use image node_id 13 for calling a global function with example usage: test_throw_nested_exception() without return types