Add groupName

Author: Marusyk

src/SignalR/server/Core/ref/Microsoft.AspNetCore.SignalR.Core.netcoreapp.cs

@@ -102,7 +102,7 @@ public static partial class HubClientsExtensions
         public static T Clients<T>(this Microsoft.AspNetCore.SignalR.IHubClients<T> hubClients, string connection1, string connection2, string connection3, string connection4, string connection5, string connection6) { throw null; }
         public static T Clients<T>(this Microsoft.AspNetCore.SignalR.IHubClients<T> hubClients, string connection1, string connection2, string connection3, string connection4, string connection5, string connection6, string connection7) { throw null; }
         public static T Clients<T>(this Microsoft.AspNetCore.SignalR.IHubClients<T> hubClients, string connection1, string connection2, string connection3, string connection4, string connection5, string connection6, string connection7, string connection8) { throw null; }
-        public static T GroupExcept<T>(this Microsoft.AspNetCore.SignalR.IHubClients<T> hubClients, System.Collections.Generic.IEnumerable<string> excludedConnectionIds) { throw null; }
+        public static T GroupExcept<T>(this Microsoft.AspNetCore.SignalR.IHubClients<T> hubClients, string groupName, System.Collections.Generic.IEnumerable<string> excludedConnectionIds) { throw null; }
         public static T GroupExcept<T>(this Microsoft.AspNetCore.SignalR.IHubClients<T> hubClients, string groupName, string excludedConnectionId1) { throw null; }
         public static T GroupExcept<T>(this Microsoft.AspNetCore.SignalR.IHubClients<T> hubClients, string groupName, string excludedConnectionId1, string excludedConnectionId2) { throw null; }
         public static T GroupExcept<T>(this Microsoft.AspNetCore.SignalR.IHubClients<T> hubClients, string groupName, string excludedConnectionId1, string excludedConnectionId2, string excludedConnectionId3) { throw null; }

src/SignalR/server/Core/src/HubClientsExtensions.cs

@@ -520,11 +520,12 @@ public static T GroupExcept<T>(this IHubClients<T> hubClients, string groupName,
         /// Gets a <typeparamref name="T" /> that can be used to invoke methods on all connections in the specified group excluding the specified connections.
         /// </summary>
         /// <param name="hubClients">The abstraction that provides access to connections.</param>
+        /// <param name="groupName">The group name.</param>
         /// <param name="excludedConnectionIds">The connection IDs to exclude.</param>
         /// <returns>A <typeparamref name="T" /> representing the methods that can be invoked on the clients.</returns>
-        public static T GroupExcept<T>(this IHubClients<T> hubClients, IEnumerable<string> excludedConnectionIds)
+        public static T GroupExcept<T>(this IHubClients<T> hubClients, string groupName, IEnumerable<string> excludedConnectionIds)
         {
-            return hubClients.GroupExcept(excludedConnectionIds.ToList());
+            return hubClients.GroupExcept(groupName, excludedConnectionIds.ToList());
         }
 
         /// <summary>