fix (#2682)

src/Discord.Net.Rest/API/Rest/ModifyAutoModRuleParams.cs

@@ -1,3 +1,4 @@
+using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -8,13 +9,29 @@ namespace Discord.API.Rest
 {
     internal class ModifyAutoModRuleParams
     {
+        [JsonProperty("name")]
         public Optional<string> Name { get; set; }
+
+        [JsonProperty("event_type")]
         public Optional<AutoModEventType> EventType { get; set; }
+
+        [JsonProperty("trigger_type")]
         public Optional<AutoModTriggerType> TriggerType { get; set; }
+
+        [JsonProperty("trigger_metadata")]
         public Optional<TriggerMetadata> TriggerMetadata { get; set; }
+
+        [JsonProperty("actions")]
         public Optional<AutoModAction[]> Actions { get; set; }
+
+        [JsonProperty("enabled")]
         public Optional<bool> Enabled { get; set; }
+
+        [JsonProperty("exempt_roles")]
         public Optional<ulong[]> ExemptRoles { get; set; }
+
+        [JsonProperty("exempt_channels")]
         public Optional<ulong[]> ExemptChannels { get; set; }
     }
 }
+