code: def update(self, other: "_DataNames"):
      def _update_d(
          d: Dict[str, Dict[str, Any]],
          other_d: Mapping[str, Mapping[str, Any]],
      ):
          for k, v in other_d.items():
              if k in d:
                  d[k].update(v)
              else:
                  d[k] = dict(v)
  
      _update_d(self.metrics, other.metrics)
      _update_d(self.params, other.params)
      self.deps.update(other.deps)
  
imports: from collections import Counter, defaultdict
  from datetime import date, datetime
  from typing import TYPE_CHECKING, Any, Dict, Iterable, Iterator, List, Literal, Mapping, NamedTuple, Optional, Set, Tuple, Union
  from dvc.exceptions import InvalidArgumentError
  from dvc.log import logger
  from dvc.scm import Git
  from dvc.ui import ui
  from dvc.utils.flatten import flatten
  from .collect import collect
label_desc: Use image node_id 2 for calling the _DataNames obj's underlying member method code with example usage: obj.update(other) without return types