[Schema Inaccuracy] Deployment Protection Rule: are these fields truly optional?

[roy-work]

Schema Inaccuracy

The schema for a deployment protection rule webhook event is:

    webhook-deployment-protection-rule-requested:
      title: deployment protection rule requested event
      type: object
      properties:
        action:
          type: string
          enum:
          - requested
        environment:
          description: The name of the environment that has the deployment protection
            rule.
          type: string
        event:
          description: The event that triggered the deployment protection rule.
          type: string
        deployment_callback_url:
          description: The URL to review the deployment protection rule.
          type: string
          format: uri
        deployment:
          "$ref": "#/components/schemas/deployment"
        pull_requests:
          type: array
          items:
            "$ref": "#/components/schemas/pull-request"
        repository:
          "$ref": "#/components/schemas/repository-webhooks"
        organization:
          "$ref": "#/components/schemas/organization-simple-webhooks"
        installation:
          "$ref": "#/components/schemas/simple-installation"
        sender:
          "$ref": "#/components/schemas/simple-user-webhooks"

(In the docs: https://docs.github.com/en/webhooks/webhook-events-and-payloads#deployment_protection_rule)

All of the fields here are optional. Is that correct? I suspect not.

For example: deployment_callback_url: what is the meaning of a deployment protection rule webhook event that doesn't include a callback URL, and what would one even do with such a thing? Same thing for deployment — how does a deployment protection rule fire on a null or missing deployment…?

(intallation, similarly.)

I've not seen either of those in the wild, either, which further makes me suspect they're actually always present. It'd be nice if the schema had that. (And then, I could just do a rote translation to T, instead of Optional<T> for those fields.)

Expected

Probably, some or all of these fields are required. It'd be great if the docs specified.

[shiftkey]

@roy-work thanks for the feedback! I've reached out to the team that maintains this area for their expertise on these field.