code: def test_valid_requires_python(self, specifier):
      expected = specifiers.SpecifierSet(specifier)
      meta = metadata.Metadata.from_raw(
          {"requires_python": specifier}, validate=False
      )
  
      assert meta.requires_python == expected
  
imports: import pathlib
  import pytest
  from packaging import metadata, requirements, specifiers, utils, version
  from packaging.metadata import ExceptionGroup
label_desc: Use image node_id 29 for calling the TestMetadata obj's underlying member method code with example usage: obj.test_valid_requires_python(specifier) without return types