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Application/Contracts/Application/IPictureService.cs

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+using Ardalis.Result;
+using Musify.Application.Pictures.Contracts;
+
+namespace Musify.Application.Contracts.Application
+{
+    public interface IPictureService
+    {
+        Task<Result<Guid>> ResizePictureAsync(string keyName, string contentType, Stream pictureStream, PictureResize[] pictureResizes,
+            CancellationToken cancellationToken);
+    }
+}