From c5a52dcb57cd23a4318e342b705f9f726e8d67a1 Mon Sep 17 00:00:00 2001
From: anlicheng <244108715@qq.com>
Date: Fri, 17 Apr 2026 17:36:58 +0800
Subject: [PATCH] =?UTF-8?q?fix=20emqtt=20maybe=E7=B1=BB=E5=9E=8B=E5=AE=9A?=
 =?UTF-8?q?=E4=B9=89?=
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---
 src/emqtt.erl | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/emqtt.erl b/src/emqtt.erl
index 181427a..aaebb81 100644
--- a/src/emqtt.erl
+++ b/src/emqtt.erl
@@ -88,7 +88,7 @@
                 | {force_ping, boolean()}
                 | {properties, properties()}).
 
--type(maybe(T) :: undefined | T).
+-type(optional(T) :: undefined | T).
 -type(topic() :: binary()).
 -type(payload() :: iodata()).
 -type(packet_id() :: 0..16#FFFF).
@@ -128,12 +128,12 @@
           bridge_mode     :: boolean(),
           clientid        :: binary(),
           clean_start     :: boolean(),
-          username        :: maybe(binary()),
-          password        :: maybe(binary()),
+          username        :: optional(binary()),
+          password        :: optional(binary()),
           proto_ver       :: version(),
           proto_name      :: iodata(),
           keepalive       :: non_neg_integer(),
-          keepalive_timer :: maybe(reference()),
+          keepalive_timer :: optional(reference()),
           force_ping      :: boolean(),
           paused          :: boolean(),
           will_flag       :: boolean(),