code: def _obtain_dependencies(self, dist: "Distribution"):
      if "dependencies" in self.dynamic:
          value = self._obtain(dist, "dependencies", {})
          if value:
              return _parse_requirements_list(value)
      return None
  
imports: import logging
  import os
  from contextlib import contextmanager
  from functools import partial
  from typing import TYPE_CHECKING, Callable, Dict, Mapping, Optional, Set, Union
  from ..errors import FileError, InvalidConfigError
  from ..warnings import SetuptoolsWarning
  from .None import expand
  from ._apply_pyprojecttoml import _PREVIOUSLY_DEFINED, _MissingDynamic
  from ._apply_pyprojecttoml import apply
label_desc: Use image node_id 17 for calling the _ConfigExpander obj's underlying member method code with example usage: obj._obtain_dependencies(dist) and returns: None, _parse_requirements_list