code: def main():
      parser = argparse.ArgumentParser(
          description="Write and read an encrypted parquet using master keys "
          "managed by Hashicorp Vault.\nBefore using please enable the "
          "transit engine in Vault and set VAULT_URL and VAULT_TOKEN "
          "environment variables."
      )
      parser.add_argument(
          "--filename",
          dest="filename",
          type=str,
          default="/tmp/encrypted_table.vault.parquet",
          help="Filename of the parquet file to be created "
          "(default: /tmp/encrypted_table.vault.parquet",
      )
      args = parser.parse_args()
      filename = args.filename
      parquet_write_read_with_vault(filename)
  
file_path: arrow/python/examples/parquet_encryption/sample_vault_kms_client.py
imports: import argparse
  import base64
  import os
  import requests
  import pyarrow
  import pyarrow.parquet
  import pyarrow.parquet.encryption
label_desc: Use image node_id 2 for calling a global function with example usage: main() without return types