code: def verify_sha512_and_rsa(filename: str) -> None:
      """Verify SHA512 hash and RSA key."""
      sha_result = verify_sha512(filename)
      print(sha_result)
  
      rsa_key, email = get_gpg_info(filename)
      if rsa_key:
          rsa_result = verify_rsa_key(rsa_key, email)
          print(rsa_result)
      else:
          print("GPG verification failed: RSA key or email not found")
  
file_path: superset/RELEASING/verify_release.py
imports: import re
  import subprocess
  import sys
  from typing import Optional
  import requests
label_desc: Use image node_id 6 for calling a global function with example usage: verify_sha512_and_rsa(filename) without return types