code: def checkout_branch(branch_name: str) -> None:
      """
      Checkout a specific branch to access its content.
  
      Parameters:
      -----------
      branch_name (str): The name of the branch to be checked out.
  
      Returns:
      --------
      None
  
      """
  
      # Fetch the latest changes from the remote repository
      subprocess.run(
          ["git", "fetch", "origin", branch_name], check=True
      )
  
      # Checkout the branch to access its content
      subprocess.run(["git", "checkout", branch_name], check=True)
  
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 4 for calling a global function with example usage: checkout_branch(branch_name) without return types