code: def _read_data() -> DataFrame:
      """ """
      df = package_csv("autompg2", "auto-mpg2.csv").copy()
      df["manufacturer"] = df["manufacturer"].map(_capitalize_words)
      df["model"] = df["model"].map(_capitalize_words)
      df["drv"] = df["drv"].replace(
          {"f": "front", "r": "rear", "4": "4x4"}
      )
      return df
  
imports: from __future__ import annotations
  import logging
  from typing import TYPE_CHECKING
  from ..util.sampledata import package_csv
label_desc: Use image node_id 2 for calling a global function with example usage: _read_data() and returns: df