Refactor

Tests/ElixxirDAppsSDKTests/MessageSendReportTests.swift

@@ -30,9 +30,8 @@ final class MessageSendReportTests: XCTestCase {
   func testDecodeEmpty() throws {
     let jsonString = "{}"
     let jsonData = jsonString.data(using: .utf8)!
-    let decoder = JSONDecoder()
-    decoder.dataDecodingStrategy = .base64
-    let report = try decoder.decode(MessageSendReport.self, from: jsonData)
+
+    let report = try MessageSendReport.decode(jsonData)
 
     XCTAssertNoDifference(report, MessageSendReport(
       roundList: nil,