Fix compile warnings

Reactor/Networking/Attributes/MethodRpcAttribute.cs

@@ -37,7 +37,7 @@ public sealed class MethodRpcAttribute : Attribute
     /// Gets or sets a value indicating whether the rpc should be sent immediately.
     /// </summary>
     [Obsolete("Non-immediate RPCs were removed in 2025.5.20. All RPCs are immediate. This property will be removed in a future version.")]
-    public bool SendImmediately { get; set; }
+    public bool SendImmediately { get; set; } = true;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="MethodRpcAttribute"/> class.
@@ -72,7 +72,7 @@ public sealed class MethodRpcAttribute : Attribute
 
             try
             {
-                var customRpc = new MethodRpc(plugin, method, attribute.Id, attribute.SendOption, attribute.LocalHandling, attribute.SendImmediately);
+                var customRpc = new MethodRpc(plugin, method, attribute.Id, attribute.SendOption, attribute.LocalHandling);
                 PluginSingleton<ReactorPlugin>.Instance.CustomRpcManager.Register(customRpc);
             }
             catch (Exception e)

Reactor/Networking/Rpc/MethodRpc.cs

@@ -32,13 +32,11 @@ public class MethodRpc : UnsafeCustomRpc
     /// <param name="id">The id of the rpc.</param>
     /// <param name="option">The send option of the rpc.</param>
     /// <param name="localHandling">The local handling method of the rpc.</param>
-    /// <param name="sendImmediately">The value indicating whether the rpc should be sent immediately.</param>
-    public MethodRpc(BasePlugin plugin, MethodInfo method, uint id, SendOption option, RpcLocalHandling localHandling, bool sendImmediately) : base(plugin, id)
+    public MethodRpc(BasePlugin plugin, MethodInfo method, uint id, SendOption option, RpcLocalHandling localHandling) : base(plugin, id)
     {
         Method = method;
         LocalHandling = localHandling;
         SendOption = option;
-        SendImmediately = sendImmediately;
 
         var parameters = method.GetParameters();
 
@@ -71,6 +69,22 @@ public class MethodRpc : UnsafeCustomRpc
         _handle = Hook(method, parameters, method.IsStatic);
     }
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="MethodRpc"/> class.
+    /// </summary>
+    /// <param name="plugin">The plugin that the rpc is attached to.</param>
+    /// <param name="method">The method of the method rpc.</param>
+    /// <param name="id">The id of the rpc.</param>
+    /// <param name="option">The send option of the rpc.</param>
+    /// <param name="localHandling">The local handling method of the rpc.</param>
+    /// <param name="sendImmediately">The value indicating whether the rpc should be sent immediately.</param>
+    [Obsolete("Non-immediate RPCs were removed in 2025.5.20. All RPCs are immediate. Remove sendImmediately from the parameter list.")]
+    public MethodRpc(BasePlugin plugin, MethodInfo method, uint id, SendOption option, RpcLocalHandling localHandling, bool sendImmediately)
+        : this(plugin, method, id, option, localHandling)
+    {
+        SendImmediately = sendImmediately;
+    }
+
     /// <summary>
     /// Gets the method of the method rpc.
     /// </summary>
@@ -92,7 +106,7 @@ public class MethodRpc : UnsafeCustomRpc
     /// Gets a value indicating whether the method rpc should be sent immediately.
     /// </summary>
     [Obsolete("Non-immediate RPCs were removed in 2025.5.20. All RPCs are immediate. This property will be removed in a future version.")]
-    public bool SendImmediately { get; }
+    public bool SendImmediately { get; } = true;
 
     /// <inheritdoc />
     public override void UnsafeWrite(MessageWriter writer, object? data)
@@ -135,7 +149,7 @@ public class MethodRpc : UnsafeCustomRpc
     /// <param name="args">The arguments to serialize and send.</param>
     public void Send(InnerNetObject innerNetObject, object[] args)
     {
-        UnsafeSend(innerNetObject, args, SendImmediately);
+        UnsafeSend(innerNetObject, args);
     }
 
     private static readonly MethodInfo _sendMethod = AccessTools.Method(typeof(MethodRpc), nameof(Send));