code: def data_root(environ=None):
      """
      The root directory for zipline data files.
  
      Parameters
      ----------
      environ : dict, optional
          An environment dict to forward to zipline_root.
  
      Returns
      -------
      data_root : str
         The zipline data root.
      """
      return zipline_path(["data"], environ=environ)
  
file_path: zipline/zipline/utils/paths.py
imports: from errno import EEXIST
  import os
  from os.path import exists, expanduser, join
  import pandas
label_desc: Use image node_id 11 for calling a global function with example usage: data_root(environ) and returns: zipline_path