From b73ae82abf8d53c1c13cd70c291908c3995fb1bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergio=20S=C3=A1nchez=20Ram=C3=ADrez?=
 <sergio.sanchez.ramirez+git@bsc.es>
Date: Tue, 13 Feb 2024 15:42:55 +0000
Subject: [PATCH] Fix missing type definition

---
 ext/ITensorNetworksEinExprsExt/ITensorNetworksEinExprsExt.jl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/ITensorNetworksEinExprsExt/ITensorNetworksEinExprsExt.jl b/ext/ITensorNetworksEinExprsExt/ITensorNetworksEinExprsExt.jl
index ebddb989..516469da 100644
--- a/ext/ITensorNetworksEinExprsExt/ITensorNetworksEinExprsExt.jl
+++ b/ext/ITensorNetworksEinExprsExt/ITensorNetworksEinExprsExt.jl
@@ -22,6 +22,8 @@ function to_einexpr(ts::Vector{ITensor})
 end
 
 function tensor_inds_to_vertex(ts::Vector{ITensor})
+  IndexType = Any
+
   mapping = Dict{Set{IndexType},VertexType}()
 
   for (v, tensor_v) in enumerate(ts)