code: def populate_readme(
      version, circleci_build, appveyor_build, coveralls_build, travis_build
  ):
      
      with open(RELEASE_README_FILE, "r") as file_obj:
          template = file_obj.read()
      contents = template.format(
          version=version,
          circleci_build=circleci_build,
          appveyor_build=appveyor_build,
          coveralls_build=coveralls_build,
          travis_build=travis_build,
      )
      with open(README_FILE, "w") as file_obj:
          file_obj.write(contents)
docs: Populates ``README.rst`` with release-specific data.
  
      This is because ``README.rst`` is used on PyPI.
  
      Args:
          version (str): The current version.
          circleci_build (Union[str, int]): The CircleCI build ID corresponding
              to the release.
          appveyor_build (str): The AppVeyor build ID corresponding to the
              release.
          coveralls_build (Union[str, int]): The Coveralls.io build ID
              corresponding to the release.
          travis_build (int): The Travis CI build ID corresponding to
              the release.