How to make a simple nested encapsulation?

[Everettss]

How to achieve nested encapsulation?

Repo for this example can be found here: https://github.com/Everettss/question-graphql-mesh

In the starting example 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
            }
        }
    }
}

[Everettss]

The key to answer is to add an resolver for nestedType like in file ./additional-resolvers.js

const resolvers = {
  Query: {
    nestedType: () => ({})
  },
};

module.exports = { resolvers };

Next add additional resolvers for those fields in .meshrc.yaml

additionalTypeDefs: |
  type NestedType {
      healthcare: healthcareQuery
      wikimedia: wikimediaQuery
  }

  extend type Query {
      nestedType: NestedType
  }
additionalResolvers:
  - targetTypeName: NestedType
    targetFieldName: wikimedia
    sourceName: Wikimedia
    sourceTypeName: Query 
    sourceFieldName: wikimedia
  - targetTypeName: NestedType
    targetFieldName: healthcare
    sourceName: Healthcare 
    sourceTypeName: Query 
    sourceFieldName: healthcare 
  - ./additional-resolvers.js

And finally remove wikimedia and healthcare from root Query:

transforms:
  - filterSchema:
      filters:
        - Query.!{wikimedia,healthcare}