class_docstr: `FeatureConnector` for integer class labels.
docstr: Class labels are displayed with their name.
docstr_tok: ["Class","labels","are","displayed","with","their","name","."]
code: def repr_html(self, ex: int) -> str:
      """Class labels are displayed with their name."""
      if ex == -1:
          return "-"
      elif not self._int2str:
          return str(ex)
      else:
          return f"{ex} ({self.int2str(ex)})"
  
imports: from typing import Optional, Union
  from etils import epath
  import numpy
  from tensorflow_datasets.core.features import feature
  from tensorflow_datasets.core.features import tensor_feature
  from tensorflow_datasets.core.proto import feature_pb2
  from tensorflow_datasets.core.utils import type_utils
label_desc: Use image node_id 11 for calling the ClassLabel obj's underlying member method code with example usage: obj.repr_html(ex) and returns: str, str, ex, str, self, str