code: def get_package_version(self, feed, group_id, artifact_id, version, show_deleted=None):
          
          route_values = {}
          if feed is not None:
              route_values['feed'] = self._serialize.url('feed', feed, 'str')
          if group_id is not None:
              route_values['groupId'] = self._serialize.url('group_id', group_id, 'str')
          if artifact_id is not None:
              route_values['artifactId'] = self._serialize.url('artifact_id', artifact_id, 'str')
          if version is not None:
              route_values['version'] = self._serialize.url('version', version, 'str')
          query_parameters = {}
          if show_deleted is not None:
              query_parameters['showDeleted'] = self._serialize.query('show_deleted', show_deleted, 'bool')
          response = self._send(http_method='GET',
                                location_id='180ed967-377a-4112-986b-607adb14ded4',
                                version='5.1-preview.1',
                                route_values=route_values,
                                query_parameters=query_parameters)
          return self._deserialize('Package', response)
docs: GetPackageVersion.
          [Preview API] Get information about a package version.
          :param str feed: Name or ID of the feed.
          :param str group_id: Group ID of the package.
          :param str artifact_id: Artifact ID of the package.
          :param str version: Version of the package.
          :param bool show_deleted: True to show information for deleted packages.
          :rtype: :class:`<Package> <azure.devops.v5_1.maven.models.Package>`