Structs that allow any properties do not have any information shown

[Chriscbr]

To see an example of this, visit https://constructs.dev/packages/construct-hub/v/0.3.192/ and go to the API reference for DenyListMap.

The page should show some kind of information to indicate that any field is allowed, per the original source code:

/**
 * The contents of the deny list file in S3.
 */
export interface DenyListMap {
  /**
   * A map from "name@version" to deny list rule.
   */
  readonly [key: string]: DenyListRule;
};

It looks like the root cause is that this information does not get saved in any form in the generated .jsii file (most other structs have a "properties" field with a list of the supported properties):

"construct-hub.DenyListMap": {
  "assembly": "construct-hub",
  "datatype": true,
  "docs": {
    "stability": "experimental",
    "summary": "The contents of the deny list file in S3."
  },
  "fqn": "construct-hub.DenyListMap",
  "kind": "interface",
  "locationInModule": {
    "filename": "src/backend/deny-list/api.ts",
    "line": 29
  },
  "name": "DenyListMap",
  "symbolId": "src/backend/deny-list/api:DenyListMap"
},

I think this is blocked until aws/jsii#2928 is resolved (since we would need a way to represent this kind of type in other languages).