code: def test_memoryview_from_memory():
      view = m.test_memoryview_from_memory()
      assert isinstance(view, memoryview)
      assert view.format == "B"
      assert bytes(view) == b"\xff\xe1\xab\x37"
  
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 38 for calling a global function with example usage: test_memoryview_from_memory() without return types