code: def __getitem__(self, key):
      def safe_collect():
          res = None
          if self.proxy_cache is not None:
              res = self.proxy_cache.get(key)
          if not res:
              try:
                  res = self.meta_run_attrs_tree.collect(key)
              except Exception:
                  res = SafeNone()
              if self.proxy_cache is not None:
                  self.proxy_cache[key] = res
          return res
  
      return AimObjectProxy(
          safe_collect,
          view=self.meta_run_attrs_tree.subtree(key),
          cache=self.proxy_cache,
      )
  
imports: import datetime
  import pytz
  from typing import Any, Union
  from typing import TYPE_CHECKING
  from aim.storage.context import Context
  from aim.storage.proxy import AimObjectProxy
  from aim.storage.structured.entities import StructuredObject
  from aim.storage.treeview import TreeView
  from aim.storage.types import AimObject, AimObjectKey, AimObjectPath, SafeNone
  from aim.storage.structured.sql_engine.entities import ModelMappedRun
label_desc: Use image node_id 3 for calling the RunView obj's underlying member method code with example usage: obj.__getitem__(key) and returns: AimObjectProxy, res