code: def _update_version_data(self, result, info):
          
          name = info.pop('name')
          version = info.pop('version')
          if version in result:
              dist = result[version]
              md = dist.metadata
          else:
              dist = make_dist(name, version, scheme=self.scheme)
              md = dist.metadata
          dist.digest = self._get_digest(info)
          if md.source_url != info['url']:
              md.source_url = self.prefer_url(md.source_url, info['url'])
          dist.locator = self
          result[version] = dist
docs: Update a result dictionary (the final result from _get_project) with a dictionary for a
          specific version, whih typically holds information gleaned from a filename or URL for an
          archive for the distribution.