code: def from_file(cls, repo: "Repo", path: str) -> "Index":
      from dvc.dvcfile import load_file
  
      dvcfile = load_file(repo, path)
      return cls(
          repo,
          stages=list(dvcfile.stages.values()),
          metrics={path: dvcfile.metrics} if dvcfile.metrics else {},
          plots={path: dvcfile.plots} if dvcfile.plots else {},
          params={path: dvcfile.params} if dvcfile.params else {},
          artifacts={path: dvcfile.artifacts}
          if dvcfile.artifacts
          else {},
      )
  
imports: import logging
  import time
  from collections import defaultdict
  from functools import partial
  from itertools import chain
  from typing import TYPE_CHECKING, Any, Callable, Dict, Iterable, Iterator, List, NamedTuple, Optional, Set, Tuple, Union
  from funcy.debug import format_time
  from dvc.dependency import ParamsDependency
  from dvc.fs import LocalFileSystem
  from dvc.fs.callbacks import DEFAULT_CALLBACK
  from dvc.log import logger
  from dvc.utils.objects import cached_property
label_desc: Use image node_id 5 for calling the Index obj's underlying member method code with example usage: obj.from_file(cls, repo, path) and returns: cls