Simple way to fetch children of a given datasource

basic_children.graphql

query MyQuery($datasource: String!, $language: String!) {
  datasource: item(path: $datasource, language: $language) {
    # List children of given datasource
    children {
      results {
        id
        name
        field(name: "MyCustomField") {
          jsonValue
        }
      }
    }
  }
}