I have webhooks that are modeled after slack. but its a custom domain. payload is

curl -X POST \

-H 'Content-Type: application/json' \

-H 'Idempotency-Key: my-unique-id-001' \

-d '{"body": "hello from a script", "sender": "my-bot"}' \

https://example.com/wh/in/5EDA95s5gbWfChh0v7T-jqOidU1Vop_U-VfMyXwMdnE

it would be nice to say if a webhooks should be formated slack like