Custom Resolver with Multiple Input Types Possible in Realm?

MongoDB Atlas App Services & Realm Atlas GraphQL API
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1

I’m trying to allow for multiple inputs of a given type for a particular field in the JSON schema of my custom resolver’s custom input. See the after field below:

{
  "type": "object",
  "title": "paginateOrdersInput",
  "properties": {
    "pageSize": {
      "bsonType": "int"
    },
    "after": {
      "bsonType": [
        "date",
        "null"
      ]
    }
  },
  "required": [
    "pageSize"
  ]
}

This passes validation but I do not have the option of using the after field in the input in GraphiQL:

image

Is it possible to have multiple input types for a particular field when using GraphQL in Realm?

I’ve also experimented with anyOf to no avail using a similar example to that found here:
https://json-schema.org/understanding-json-schema/reference/combining.html