Adding the IAuthenticationSchemeInformationProvider interface #200

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Merged

Aug 8, 2025

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+    // Copyright (c) Microsoft Corporation. All rights reserved.
+    // Licensed under the MIT License.
+    namespace Microsoft.Identity.Abstractions
+    {
+        /// <summary>
+        /// Provides information about the effective authentication scheme (options name).
+        /// If passing null or string.Empty, this returns the default authentication scheme.
+        /// </summary>
+        public interface IAuthenticationSchemeInformationProvider
+        {
+            /// <summary>
+            /// Get the effective authentication scheme based on the provided authentication scheme.
+            /// </summary>
+            /// <param name="authenticationScheme">intended authentication scheme (options name).</param>
+            /// <returns>Effective authentication scheme (default authentication scheme if the intended
+            /// authentication scheme is null or an empty string.</returns>
+            string GetEffectiveAuthenticationScheme(string? authenticationScheme);
+        }
+    }

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