Document form data and images

Hello;

Is there a way to produce a spec of the type:
ref: https://spec.openapis.org/oas/latest.html#special-considerations-for-multipart-content

requestBody:
  content:
    multipart/form-data:
      schema:
        type: object
        properties:
          id:
            type: string
            format: uuid
          address:
            # default Content-Type for objects is `application/json`
            type: object
            properties: {}
          profileImage:
            # Content-Type for application-level encoded resource is `text/plain`
            type: string
            contentMediaType: image/png
            contentEncoding: base64
          children:
            # default Content-Type for arrays is based on the _inner_ type (`text/plain` here)
            type: array
            items:
              type: string
          addresses:
            # default Content-Type for arrays is based on the _inner_ type (object shown, so `application/json` in this example)
            type: array
            items:
              type: object
              $ref: '#/components/schemas/Address'

Start by locating the request-body generation path and its handling of multipart/form-data, then compare its output with the OpenAPI multipart-content reference and the example in this issue. Done means form fields, nested objects and arrays, and encoded image data are represented in the generated specification as described.