From c1f47c7b223ff789091b170b4e8ce48e7d69bbb4 Mon Sep 17 00:00:00 2001
From: "Thomas A. Christensen II" <25492070+MillironX@users.noreply.github.com>
Date: Mon, 11 Jul 2022 12:50:40 -0500
Subject: [PATCH] Add private alternate base getter for Substitution

---
 src/SequenceVariation.jl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/SequenceVariation.jl b/src/SequenceVariation.jl
index b7d6fb8..785384a 100644
--- a/src/SequenceVariation.jl
+++ b/src/SequenceVariation.jl
@@ -468,6 +468,10 @@ function _refbases(s::Substitution, reference::S, pos::UInt) where S <: BioSeque
     return S([reference[pos]])
 end
 
+function _altbases(s::Substitution, reference::S, pos::UInt) where S <: BioSequence
+    return S([s.x])
+end
+
 export Insertion,
     Deletion,
     Substitution,