Get A Registered External Chat Completions Agent By Id.

curl --request GET \
  --url http://localhost/api/v1/agents/external-chat/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "tenant_id": "<string>",
  "tenant_name": "<string>",
  "title": "<string>",
  "description": "<string>",
  "created_on": "2023-11-07T05:31:56Z",
  "created_by": "<string>",
  "created_by_username": "<string>",
  "updated_at": "2023-11-07T05:31:56Z",
  "tags": [
    "<string>"
  ],
  "name": "<string>",
  "type": "<string>",
  "provider": "<string>",
  "nickname": "<string>",
  "hidden": false,
  "api_url": "<string>",
  "auth_scheme": "BEARER_TOKEN",
  "instructions": "<string>",
  "auth_config": {},
  "chat_params": {},
  "enable_cot": false,
  "connection_id": "<string>"
}