code: def _one_path_one_key(path, key, start, stop, chunksize):
      """
      Get the DataFrame corresponding to one path and one key (which
      should not contain any wildcards).
      """
  
      if start >= stop:
          raise ValueError(
              "Start row number ({}) is above or equal to stop "
              "row number ({})".format(start, stop)
          )
  
      return [
          (path, key, {"start": s, "stop": s + chunksize})
          for i, s in enumerate(range(start, stop, chunksize))
      ]
  
imports: from __future__ import annotations
  import os
  import uuid
  from fnmatch import fnmatch
  from glob import glob
  from warnings import warn
  import pandas
  from fsspec.utils import build_name_function, stringify_path
  from tlz import merge
  from dask import config
  from dask.base import compute_as_if_collection, get_scheduler, named_schedulers, tokenize
  from dask.dataframe.backends import dataframe_creation_dispatch
  from dask.dataframe.core import DataFrame, Scalar
  from dask.dataframe.io.io import _link, from_map
  from dask.dataframe.io.utils import DataFrameIOFunction, SupportsLock
  from dask.highlevelgraph import HighLevelGraph
  from dask.utils import get_scheduler_lock
  from dask.dataframe.core import _Frame
label_desc: Use image node_id 5 for calling a global function with example usage: _one_path_one_key(path, key, start, stop, chunksize) and returns: unknown