From ef431050173575735e7e8f4e43247c5975529362 Mon Sep 17 00:00:00 2001
From: Kris Nuttycombe <kris@nutty.land>
Date: Thu, 21 Dec 2023 17:30:45 -0700
Subject: [PATCH] Strengthen bounds on `map_authorization` arguments.

---
 src/bundle.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/bundle.rs b/src/bundle.rs
index 75941f9..bf6f5fc 100644
--- a/src/bundle.rs
+++ b/src/bundle.rs
@@ -135,10 +135,10 @@ impl<A: Authorization, V> Bundle<A, V> {
     pub fn map_authorization<R, B: Authorization>(
         self,
         mut context: R,
-        mut spend_proof: impl FnMut(&mut R, A::SpendProof) -> B::SpendProof,
-        mut output_proof: impl FnMut(&mut R, A::OutputProof) -> B::OutputProof,
-        mut auth_sig: impl FnMut(&mut R, A::AuthSig) -> B::AuthSig,
-        mut auth: impl FnMut(&mut R, A) -> B,
+        spend_proof: impl Fn(&mut R, A::SpendProof) -> B::SpendProof,
+        output_proof: impl Fn(&mut R, A::OutputProof) -> B::OutputProof,
+        auth_sig: impl Fn(&mut R, A::AuthSig) -> B::AuthSig,
+        auth: impl FnOnce(&mut R, A) -> B,
     ) -> Bundle<B, V> {
         Bundle {
             shielded_spends: self