Secret key after webhook creation

In the documentation of webhook creation you are mentioning(https://developers.suresend.ai/reference/createwebhook)
A secret key is automatically generated for signature verification
The secret key is only returned once during creation - store it securely
but after creation this is response which I get
{ "id": "019cd2ec-2d4f-767d-b0de-577905703863", "name": "Test", "url": "my_url", "system_identifier": "partner_api", "status": "active", "events": [ "callsCreated" ], "retry_count": 0, "last_triggered_at": null, "created_at": "2026-03-09T14:06:59.405Z", "updated_at": "2026-03-09T14:06:59.405Z", "secret_key_set": true, "team_id": "019b4bf7-ebc9-7038-9b0a-d49dd0614f7a", "scope": "team", "user_id": null }

I don't see secretKey, could you help pls?