From db7fd8f33c218881899ca8335b470eda5aaec013 Mon Sep 17 00:00:00 2001
From: Bryan Brooks <bryanbrooks@I3-MINI--BITS.local>
Date: Sun, 4 Jan 2026 18:14:22 -0600
Subject: [PATCH] fix: replace unstable is_multiple_of with modulo check

The is_multiple_of method is unstable (rust-lang/rust#128101).
Use simple modulo check for stable Rust compatibility.
---
 src/token.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/token.rs b/src/token.rs
index 367cb4a..a3c26f0 100644
--- a/src/token.rs
+++ b/src/token.rs
@@ -309,7 +309,7 @@ impl TokenVerifier {
 // Add hex dependency for from_hex
 mod hex {
     pub fn decode(s: &str) -> Result<Vec<u8>, String> {
-        if !s.len().is_multiple_of(2) {
+        if s.len() % 2 != 0 {
             return Err("Invalid hex string length".to_string());
         }
 
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