Use file scoped namepace

GerstITS.Examples.Api/Common/Configurations/Extensions/IConfigurationExtensions.cs

@@ -2,28 +2,27 @@
 using System.Linq;
 using Microsoft.Extensions.Configuration;
 
-namespace GerstITS.Examples.Api.Configurations
+namespace GerstITS.Examples.Api.Configurations;
+
+public static class IConfigurationExtensions
 {
-    public static class IConfigurationExtensions
+    #region Methods
+
+    public static TEnum GetFlaggedEnum<TEnum>(this IConfiguration configuration, string key)
+        where TEnum : struct, IConvertible
     {
-        #region Methods
+        ThrowsAnExceptionIfTypeIsNotAnEnumeration<TEnum>();
 
-        public static TEnum GetFlaggedEnum<TEnum>(this IConfiguration configuration, string key)
-            where TEnum : struct, IConvertible
-        {
-            ThrowsAnExceptionIfTypeIsNotAnEnumeration<TEnum>();
-
-            return (TEnum)(object)(configuration.GetSection(key)?
-                    .Get<TEnum[]>() ?? Enumerable.Empty<TEnum>())
-                .Sum(i => (int)(object)i);
-        }
-
-        private static void ThrowsAnExceptionIfTypeIsNotAnEnumeration<TEnum>() where TEnum : struct, IConvertible
-        {
-            if (!typeof(TEnum).IsEnum)
-                throw new InvalidOperationException($"{typeof(TEnum)} is not supported.");
-        }
-
-        #endregion
+        return (TEnum)(object)(configuration.GetSection(key)?
+                .Get<TEnum[]>() ?? Enumerable.Empty<TEnum>())
+            .Sum(i => (int)(object)i);
     }
-}
+
+    private static void ThrowsAnExceptionIfTypeIsNotAnEnumeration<TEnum>() where TEnum : struct, IConvertible
+    {
+        if (!typeof(TEnum).IsEnum)
+            throw new InvalidOperationException($"{typeof(TEnum)} is not supported.");
+    }
+
+    #endregion
+}