seal classes with IDisposable (#21)

.gitignore

@@ -348,3 +348,6 @@ MigrationBackup/
 
 # Ionide (cross platform F# VS Code tools) working folder
 .ionide/
+
+# ONNX runtime
+*.onnx

NeMoOnnxSharp.Example/ModelDownloader.cs

@@ -12,7 +12,7 @@
 
 namespace NeMoOnnxSharp.Example
 {
-    internal class ModelDownloader : IDisposable
+    internal sealed class ModelDownloader : IDisposable
     {
         private readonly HttpClient _httpClient;
 

NeMoOnnxSharp/EncDecCTCModel.cs

@@ -6,13 +6,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
-using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
 namespace NeMoOnnxSharp
 {
-    public class EncDecCTCModel : ASRModel, IDisposable
+    public sealed class EncDecCTCModel : ASRModel, IDisposable
     {
         private const string Vocabulary = " abcdefghijklmnopqrstuvwxyz'_";
 

NeMoOnnxSharp/EncDecClassificationModel.cs

@@ -6,11 +6,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 namespace NeMoOnnxSharp
 {
-    public class EncDecClassificationModel : ASRModel, IDisposable
+    public sealed class EncDecClassificationModel : ASRModel, IDisposable
     {
         private static readonly string[] SpeechCommandsLabels = new string[]
         {

NeMoOnnxSharp/FrameVAD.cs

@@ -8,7 +8,7 @@
 
 namespace NeMoOnnxSharp
 {
-    public class FrameVAD : IDisposable
+    public sealed class FrameVAD : IDisposable
     {
         private readonly int _sampleRate;
         private readonly int _modelWinLength;

NeMoOnnxSharp/SpectrogramGenerator.cs

@@ -7,11 +7,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 namespace NeMoOnnxSharp
 {
-    public class SpectrogramGenerator : IDisposable
+    public sealed class SpectrogramGenerator : IDisposable
     {
         private readonly BaseTokenizer _tokenizer;
         private readonly InferenceSession _inferSess;

NeMoOnnxSharp/SpeechRecognizer.cs

@@ -5,12 +5,11 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Reflection;
 using System.Runtime.InteropServices;
 
 namespace NeMoOnnxSharp
 {
-    public class SpeechRecognizer : IDisposable
+    public sealed class SpeechRecognizer : IDisposable
     {
         public delegate void SpeechStart(long position);
         public delegate void SpeechEnd(long position, short[] audioSignal, string? transcript);

NeMoOnnxSharp/Vocoder.cs

@@ -6,11 +6,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 namespace NeMoOnnxSharp
 {
-    public class Vocoder : IDisposable
+    public sealed class Vocoder : IDisposable
     {
         private readonly InferenceSession _inferSess;
         private readonly int _nfilt;