code: def __init__(
      self,
      field_name: str,
      version: str,
      description: Optional[str] = None,
  ):
      if not description:
          description = f"remove '{field_name}' field from cache"
      super().__init__(version=version, description=description)
      self.field_name = field_name
  
imports: import logging
  from collections.abc import Mapping
  from typing import Any, Optional
  from libcommon.queue import JobDocument
  from libcommon.simple_cache import CachedResponseDocument
  from mongoengine.connection import get_db
  from mongodb_migration.check import check_documents
  from mongodb_migration.migration import BaseCacheMigration, BaseQueueMigration, CacheMigration, IrreversibleMigrationError, MetricsMigration, QueueMigration
label_desc: Use image node_id 1 to create a new MigrationRemoveFieldFromCache object from inherited base classes: BaseCacheMigration with example: obj = MigrationRemoveFieldFromCache(field_name, version, description)