class_docstr: Module to read contents from a file, transform the contents with a function and write them to the datastore.
code: def get_description(self):
      return self.file_path
  
file_path: popmon/popmon/io/file_reader.py
imports: from __future__ import annotations
  from pathlib import Path
  from typing import Callable
  from popmon.base import Module
label_desc: Use image node_id 2 for calling the FileReader obj's underlying member method code with example usage: obj.get_description() and returns: self