code: def generate_token(size=12):
      assert size > 0
      alpha = string.ascii_lowercase
      alnum = string.ascii_lowercase + string.digits
      return secrets.choice(alpha) + "".join(
          [secrets.choice(alnum) for _ in range(size - 1)]
      )
  
file_path: hail/ci/ci/utils.py
imports: import datetime
  import secrets
  import string
  import urllib.parse
  from typing import List, Optional
  from gear import Database
  from gear.cloud_config import get_gcp_config
label_desc: Use image node_id 1 for calling a global function with example usage: generate_token(size) and returns: unknown