From 45fc4eb5ab575e11f64ae1cf7cf304d9c9469fe2 Mon Sep 17 00:00:00 2001
From: Nicholas Bauer <nicholasbauer@outlook.com>
Date: Thu, 23 Sep 2021 13:26:54 -0400
Subject: [PATCH] return type

---
 src/colorbars.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/colorbars.jl b/src/colorbars.jl
index ece1e236..c7d8f431 100644
--- a/src/colorbars.jl
+++ b/src/colorbars.jl
@@ -5,7 +5,7 @@ process_clims(s::Union{Symbol,Nothing,Missing}) = ignorenan_extrema
 # don't specialize on ::Function otherwise python functions won't work
 process_clims(f) = f
 
-function update_clims(sp::Subplot, op = process_clims(sp[:clims]))
+function update_clims(sp::Subplot, op = process_clims(sp[:clims]))::Tuple{Float64, Float64}
     zmin, zmax = Inf, -Inf
     for series in series_list(sp)
         if series[:colorbar_entry]