fix end session message init function

SignalServiceKit/src/Messages/Interactions/OWSEndSessionMessage.h

@@ -21,6 +21,8 @@ NS_SWIFT_NAME(EndSessionMessage)
                                     contactShare:(nullable OWSContact *)contactShare
                                      linkPreview:(nullable OWSLinkPreview *)linkPreview NS_UNAVAILABLE;
 
+- (instancetype)initInThread:(nullable TSThread *)thread messageBody:(nullable NSString *)body attachmentId:(nullable NSString *)attachmentId NS_DESIGNATED_INITIALIZER;
+
 // MJK TODO can we remove the sender timestamp?
 - (instancetype)initWithTimestamp:(uint64_t)timestamp inThread:(nullable TSThread *)thread NS_DESIGNATED_INITIALIZER;
 - (instancetype)initWithCoder:(NSCoder *)coder NS_DESIGNATED_INITIALIZER;

SignalServiceKit/src/Messages/Interactions/OWSEndSessionMessage.m

@@ -5,6 +5,7 @@
 #import "OWSEndSessionMessage.h"
 #import "OWSPrimaryStorage+Loki.h"
 #import "SignalRecipient.h"
+#import <SessionCoreKit/NSDate+OWS.h>
 #import <SessionServiceKit/SessionServiceKit-Swift.h>
 
 NS_ASSUME_NONNULL_BEGIN
@@ -31,6 +32,26 @@ NS_ASSUME_NONNULL_BEGIN
                                        linkPreview:nil];
 }
 
+- (instancetype)initInThread:(nullable TSThread *)thread messageBody:(nullable NSString *)body attachmentId:(nullable NSString *)attachmentId
+{
+    NSMutableArray<NSString *> *attachmentIds = [NSMutableArray new];
+    if (attachmentId) {
+        [attachmentIds addObject:attachmentId];
+    }
+
+    return [super initOutgoingMessageWithTimestamp:[NSDate ows_millisecondTimeStamp]
+                                          inThread:thread
+                                       messageBody:body
+                                     attachmentIds:attachmentIds
+                                  expiresInSeconds:0
+                                   expireStartedAt:0
+                                    isVoiceMessage:NO
+                                  groupMetaMessage:TSGroupMetaMessageUnspecified
+                                     quotedMessage:nil
+                                      contactShare:nil
+                                       linkPreview:nil];
+}
+
 - (BOOL)shouldBeSaved
 {
     return NO;