from meibelai import Meibelai
import os


with Meibelai(
    api_key_header=os.getenv("MEIBELAI_API_KEY_HEADER", ""),
) as m_client:

    res = m_client.blueprints.executions.send_chat_message(blueprint_instance_id="<id>", user_message="<value>", metadata=None)

    # Handle response
    print(res)

{
  "assistant_response": "<string>"
}