from meibelai import Meibelai
import os


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

    res = m_client.blueprint_instances.add_activity_by_blueprint_instance(blueprint_instance_id="<id>", activity_type="<value>", input_data={
        "key": "<value>",
    }, output_data={
        "key": "<value>",
        "key1": "<value>",
        "key2": "<value>",
    }, group_id="<id>")

    # Handle response
    print(res)

{
  "id": "<string>"
}