code: def _max_class_prediction(
      p: TextClassificationAnnotation, multi_label: bool
  ) -> Optional[ClassPrediction]:
      if multi_label or p is None or not p.labels:
          return None
      return p.labels[0]
  
imports: from datetime import datetime
  from typing import Any, ClassVar, Dict, List, Optional, Union
  from argilla.server.commons.models import PredictionStatus, TaskStatus, TaskType
  from argilla.server.constants import DEFAULT_MAX_KEYWORD_LENGTH
  from argilla.server.helpers import flatten_dict
  from argilla.server.pydantic_v1 import BaseModel, Field, root_validator, validator
  from argilla.server.services.datasets import ServiceBaseDataset
  from argilla.server.services.search.model import ServiceBaseRecordsQuery, ServiceScoreRange
  from argilla.server.services.tasks.commons import ServiceBaseAnnotation, ServiceBaseRecord
label_desc: Use image node_id 13 for calling the ServiceTextClassificationRecord obj's underlying member method code with example usage: obj._max_class_prediction(p, multi_label) and returns: p, None