code: def power(path: Path) -> Tuple[AnyNDArray, AnyNDArray]:
      data = pd.read_excel(path, engine="openpyxl").values
      return data[:, :-1], data[:, -1].reshape(-1, 1)
  
file_path: GPflow/benchmark/datasets.py
imports: from pathlib import Path
  from typing import Tuple
  import numpy
  import pandas
  from benchmark.dataset_api import LARGE, MEDIUM, REAL_DATA, REGRESSION, SYNTHETIC, TINY, make_unsplit_array_dataset_factory, make_url_dataset_factory
  from gpflow.base import AnyNDArray
label_desc: Use image node_id 7 for calling a global function with example usage: power(path) and returns: data,  data