code: def read_version_from_file(filename: str) -> Optional[str]:
      """
      Read the version from a file.
  
      Parameters:
      -----------
      filename (str): The path to the file containing the version.
  
      Returns:
      --------
      Optional[str]: The version number read from the file, or None if not found.
  
      """
  
      with open(filename, "r") as file:
          version_content = file.read()
          version_match = re.search(
              r"version=(\d+\.\d+\.\d+)", version_content
          )
          if version_match:
              version = version_match.group(1)
          else:
              version = None
          return version
  
file_path: FinQuant/scripts/update_version.py
imports: import argparse
  import re
  import subprocess
  import sys
  from typing import Optional, Tuple
label_desc: Use image node_id 3 for calling a global function with example usage: read_version_from_file(filename) and returns: version