class_docstr: Contains information about accounts.
  `path`: Path to sqlite file where the information about accounts is stored.
code: def _generate_nonexistent_api_key(self):
      def generate_api_key() -> str:
          return "".join(
              random.choice(
                  string.ascii_uppercase
                  + string.ascii_lowercase
                  + string.digits
              )
              for _ in range(32)
          )
  
      # The chance of generating an API key that already exists is tiny, but be extra safe
      # by checking the API key does not already exist in the database
      api_key: str = generate_api_key()
      with SqliteDict(self.path) as cache:
          while api_key in cache:
              api_key = generate_api_key()
      return api_key
  
imports: import copy
  import datetime
  import random
  import string
  from typing import Dict, Optional, Callable, List
  from dacite import from_dict
  from dataclasses import asdict, dataclass, field
  from sqlitedict import SqliteDict
  from helm.common.authentication import Authentication
  from helm.common.general import hlog
label_desc: Use image node_id 11 for calling the Accounts obj's underlying member method code with example usage: obj._generate_nonexistent_api_key() and returns: api_key, str