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Prefab/Handler/IHandler.cs

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+namespace Prefab.Handler;
+
+/// <summary>
+/// Defines a handler that processes a request and returns a response asynchronously.
+/// </summary>
+/// <remarks>Implementations of this interface encapsulate the logic required to handle a specific request and
+/// produce a result. Handlers are typically used in command or query processing pipelines to separate request handling
+/// logic from other application concerns.</remarks>
+/// <typeparam name="TResponse">The type of the response returned by the handler.</typeparam>
+public interface IHandler<TResponse>
+{
+    Task<TResponse> Execute(CancellationToken cancellationToken);
+}
+
+/// <summary>
+/// Defines a contract for handling a request and producing a response asynchronously.
+/// </summary>
+/// <remarks>Implementations of this interface should be thread-safe if they are intended to be used concurrently.
+/// The interface is typically used in request/response or command/query processing pipelines.</remarks>
+/// <typeparam name="TRequest">The type of the request to be handled.</typeparam>
+/// <typeparam name="TResponse">The type of the response returned after handling the request.</typeparam>
+public interface IHandler<in TRequest, TResponse>
+{
+    Task<TResponse> Execute(TRequest request, CancellationToken cancellationToken);
+}