class_docstr: Group of functions related to elasticsearch filters
class_docstr_tok: ["Group","of","functions","related","to","elasticsearch","filters"]
docstr: Filter records containing task info for given task name
docstr_tok: ["Filter","records","containing","task","info","for","given","task","name"]
code: def exists_field(field_name: str) -> Dict[str, Any]:
      """Filter records containing task info for given task name"""
      return {"exists": {"field": field_name}}
  
imports: from enum import Enum
  from typing import Any, Dict, List, Optional, Type, Union
  from argilla.server.commons.models import TaskStatus
  from argilla.server.daos.backend.mappings.helpers import mappings
  from argilla.server.pydantic_v1 import BaseModel
label_desc: Use image node_id 2 for calling the filters obj's underlying member method code with example usage: obj.exists_field(field_name) and returns: dict