1 files changed, 5 insertions, 6 deletions

diff --git a/LibMatrix/EventTypes/Spec/State/RoomInfo/RoomPowerLevelEventContent.cs b/LibMatrix.EventTypes/Spec/State/RoomInfo/RoomPowerLevelEventContent.cs
index 08f8ad5..1a09ab8 100644
--- a/LibMatrix/EventTypes/Spec/State/RoomInfo/RoomPowerLevelEventContent.cs
+++ b/LibMatrix.EventTypes/Spec/State/RoomInfo/RoomPowerLevelEventContent.cs
@@ -1,5 +1,4 @@
 using System.Text.Json.Serialization;
-using LibMatrix.Interfaces;
 
 namespace LibMatrix.EventTypes.Spec.State;
 
@@ -48,22 +47,22 @@ public class RoomPowerLevelEventContent : TimelineEventContent {
     }
 
     public bool IsUserAdmin(string userId) {
-        if (userId is null) throw new ArgumentNullException(nameof(userId));
+        ArgumentNullException.ThrowIfNull(userId);
         return Users.TryGetValue(userId, out var level) && level >= Events.Max(x => x.Value);
     }
 
     public bool UserHasTimelinePermission(string userId, string eventType) {
-        if (userId is null) throw new ArgumentNullException(nameof(userId));
+        ArgumentNullException.ThrowIfNull(userId);
         return Users.TryGetValue(userId, out var level) && level >= Events.GetValueOrDefault(eventType, EventsDefault ?? 0);
     }
 
     public bool UserHasStatePermission(string userId, string eventType) {
-        if (userId is null) throw new ArgumentNullException(nameof(userId));
+        ArgumentNullException.ThrowIfNull(userId);
         return Users.TryGetValue(userId, out var level) && level >= Events.GetValueOrDefault(eventType, StateDefault ?? 50);
     }
 
     public long GetUserPowerLevel(string userId) {
-        if (userId is null) throw new ArgumentNullException(nameof(userId));
+        ArgumentNullException.ThrowIfNull(userId);
         return Users.TryGetValue(userId, out var level) ? level : UsersDefault ?? UsersDefault ?? 0;
     }
 
@@ -72,7 +71,7 @@ public class RoomPowerLevelEventContent : TimelineEventContent {
     }
 
     public void SetUserPowerLevel(string userId, long powerLevel) {
-        if (userId is null) throw new ArgumentNullException(nameof(userId));
+        ArgumentNullException.ThrowIfNull(userId);
         Users ??= new();
         Users[userId] = powerLevel;
     }