Use file scoped namespace declarations

src/Spectre.Console.Testing/Cli/CallbackCommandInterceptor.cs

@@ -1,28 +1,27 @@
 using System;
 using Spectre.Console.Cli;
 
-namespace Spectre.Console.Testing
+namespace Spectre.Console.Testing;
+
+/// <summary>
+/// A <see cref="ICommandInterceptor"/> that triggers a callback when invoked.
+/// </summary>
+public sealed class CallbackCommandInterceptor : ICommandInterceptor
 {
+    private readonly Action<CommandContext, CommandSettings> _callback;
+
     /// <summary>
-    /// A <see cref="ICommandInterceptor"/> that triggers a callback when invoked.
+    /// Initializes a new instance of the <see cref="CallbackCommandInterceptor"/> class.
     /// </summary>
-    public sealed class CallbackCommandInterceptor : ICommandInterceptor
+    /// <param name="callback">The callback to call when the interceptor is invoked.</param>
+    public CallbackCommandInterceptor(Action<CommandContext, CommandSettings> callback)
     {
-        private readonly Action<CommandContext, CommandSettings> _callback;
+        _callback = callback ?? throw new ArgumentNullException(nameof(callback));
+    }
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="CallbackCommandInterceptor"/> class.
-        /// </summary>
-        /// <param name="callback">The callback to call when the interceptor is invoked.</param>
-        public CallbackCommandInterceptor(Action<CommandContext, CommandSettings> callback)
-        {
-            _callback = callback ?? throw new ArgumentNullException(nameof(callback));
-        }
-
-        /// <inheritdoc/>
-        public void Intercept(CommandContext context, CommandSettings settings)
-        {
-            _callback(context, settings);
-        }
+    /// <inheritdoc/>
+    public void Intercept(CommandContext context, CommandSettings settings)
+    {
+        _callback(context, settings);
     }
 }