docstr: Utility class for span operations.
docstr_tok: ["Utility","class","for","span","operations","."]
code: def span_utils(self) -> SpanUtils:
      """Utility class for span operations."""
      return self._span_utils
  
imports: from typing import Dict, List, Optional, Set, Tuple
  from argilla.server.commons.models import PredictionStatus, TaskType
  from argilla.server.constants import DEFAULT_MAX_KEYWORD_LENGTH
  from argilla.server.pydantic_v1 import BaseModel, Field, validator
  from argilla.server.services.search.model import ServiceBaseRecordsQuery, ServiceScoreRange
  from argilla.server.services.tasks.commons import ServiceBaseAnnotation, ServiceBaseRecord
  from argilla.utils import SpanUtils
label_desc: Use image node_id 4 for calling the ServiceTokenClassificationRecord obj's underlying member method code with example usage: obj.span_utils() and returns: self