def refresh_metadata(cmd: Command) -> None:
# distutils remembers what commands are run during a build so that
# subsequent calls to the command are skipped. This means that metadata is
# normally only created once even if multiple builds are being done (e.g.,
# 'python setup.py sdist bdist_wheel'). Since package data is dynamically
# built depending on the type of build, we need to ensure that any stale
# metadata is refreshed.
if cmd.distribution.have_run.get('egg_info', 0):
cmd.distribution.reinitialize_command('egg_info')
cmd.run_command('egg_info')
