// tabbarcontroller
private func requestDocuments() {
        guard !isDocumentsRequesting else { return }
        isDocumentsRequesting = true

        // get documents
        Client.documentsData(success: { [weak self] page in
            Model.shared.documentsData = page.value
            self?.isDocumentsRequesting = false
            self?.documentsRequstSucceeded = true
        }, failure: { [weak self] _ in
            self?.isDocumentsRequesting = false
        })
    }

// Client
static func documentsData(success: @escaping Success<ValuePage<DocumentsData>>, failure: @escaping Failure) {
        _ = authorizedRequest(script: .documentsData, success: success, failure: failure)
    }

// model in yolikit
public class DocumentsData: Codable {

    // MARK: Properties

    public let documents: [Document]

}

// model in yolikit
public class Document: Codable {

    // MARK: Properties

    public let documentid: String

    public let downloadURL: String

    public let type: String

    public let name: String

    public let size: Int

//    public let transaction: Transaction

    public let customName: String

    public let customGroup: String

    public let contractid: String?
}