Create Assistant Action

{
  "id": "<string>",
  "enabled": true,
  "name": "<string>",
  "instructions": "<string>",
  "action_id": "<string>",
  "assistant_id": "<string>",
  "connection_id": "<string>",
  "config": {
    "input": {},
    "definitions": [
      {
        "path": "<string>",
        "definition": {}
      }
    ]
  },
  "created_at": "2023-12-25",
  "updated_at": "2023-12-25"
}