code: def load_file(file_base: str, filename: str) -> pd.DataFrame:
      """
      Load data from a csv.gz file.
  
      Parameters
      ----------
      file_base : str
          The director to use as the root.
      filename : str
          Name of csv.gz to load
  
      Returns
      -------
      DataFrame
          Dataframe containing the loaded data.
      """
      curr_dir = os.path.split(os.path.abspath(file_base))[0]
      data = pd.read_csv(os.path.join(curr_dir, filename))
      if "Date" in data:
          data.Date = pd.to_datetime(data.Date)
          data = data.set_index("Date")
      for col in data:
          data[col] = pd.to_numeric(data[col], errors="coerce")
      return data
  
label_desc: Use image node_id 1 for calling a global function with example usage: load_file(file_base, filename) and returns: data