Example for question how to achieve nested encapsulation

Currently, there is one level of encapsulation,
wikimedia.org/1.0.0/swagger.yaml is wrapped in wikimedia
healthcare.gov/1.0.0/openapi.yaml is wrapped in healthcare:

.meshrc.yaml contains this definitions:

sources:
  - name: Wikimedia
    handler:
      openapi:
        source: https://api.apis.guru/v2/specs/wikimedia.org/1.0.0/swagger.yaml
    transforms:
      - prefix:
          value: Wikimedia_
      - encapsulate:
          name: wikimedia
          applyTo:
            query: true
            mutation: false
            subscription: false
  - name: Healthcare
    handler:
      openapi:
        source: https://api.apis.guru/v2/specs/healthcare.gov/1.0.0/openapi.yaml
    transforms:
      - prefix:
          value: Healthcare_
      - encapsulate:
          name: healthcare
          applyTo:
            query: true
            mutation: false
            subscription: false

This .meshrc.yaml generates this root level Query type:

type Query {
    healthcare: healthcareQuery
    wikimedia: wikimediaQuery
}

To execute this query I run

query currentQuery {
    healthcare {
        getApiArticlesMediaTypeExtension(mediaTypeExtension: _JSON) {
            articles {
                date
            }
        }
    }
    wikimedia {
        getFeedAvailability {
            inTheNews
        }
    }
}

My question is how to modify this example to wrap fields wikimedia and healthcare in NestedType like this:

type NestedType {
    healthcare: healthcareQuery
    wikimedia: wikimediaQuery
}

type Query {
    nestedType: NestedType
}

So I could query this schema by:

query desiredQuery {
    nestedType {
        healthcare {
            getApiArticlesMediaTypeExtension(mediaTypeExtension: _JSON) {
                articles {
                    date
                }
            }
        }
        wikimedia {
            getFeedAvailability {
                inTheNews
            }
        }
    }
}