{
	nodes(filter: {
    schema: {is: folder}
    fields: {
      folder: {
        name: {regex: "^[0-9]+$"}
      }
    }
  }) {
    # [$.data.nodes.elements.length()=2]
    elements {
      uuid
      schema {
        name
      }
      ... on folder {
        fields {
          name
        }
      }
    }
	}
}
# [$.errors=<is-undefined>]