Defauly "Getting Started" fails.

[danpe]

🐛 Describe the bug

Following the mem0 getting started guide just fails.

from mem0 import MemoryClient

#os.environ["OPENAI_API_KEY"] = os.getenv("OPENAI_API_KEY")

client = MemoryClient(api_key="m0-AFawByIj1vSI5tMocpXtk7BoJKVm0pXzVLo3MMkV")

messages = [
    {"role": "user", "content": "Hi, I'm Alex. I'm a vegetarian and I'm allergic to nuts."},
    {"role": "assistant", "content": "Hello Alex! I've noted that you're a vegetarian and have a nut allergy. I'll keep this in mind for any food-related recommendations or discussions."}
]
client.add(messages, user_id="alex")

query = "What can I cook for dinner tonight?"
client.search(query, user_id="alex")

And I get the following exception:

mem0/configs/llms/base.py", line 22, in BaseLlmConfig
    models: Optional[list[str]] = None,
TypeError: 'type' object is not subscriptable