code: def build_tree(path):
      """
        Takes PATH as the folder path, walks the file system below that path, and
      creates a tree structure based on any files and folders found there.
      Returns the prepared tree structure plus the maximum file modification
      timestamp under the given folder.
  
      """
      return _handle_dir(os.path.normpath(path))
  
imports: import os
  import os.path
  import stat
  import sys
label_desc: Use image node_id 1 for calling a global function with example usage: build_tree(path) and returns: _handle_dir