From 8cb8b6f8febb762cc2c59bf26f3a6b789d76348d Mon Sep 17 00:00:00 2001
From: Pepijn de Vos <pepijn.devos@juliacomputing.com>
Date: Thu, 2 Nov 2023 18:17:16 +0100
Subject: [PATCH] Change typeof(x) <: y to x isa y

---
 src/systems/diffeqs/sdesystem.jl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/systems/diffeqs/sdesystem.jl b/src/systems/diffeqs/sdesystem.jl
index a42c7aecfa..e584857fd8 100644
--- a/src/systems/diffeqs/sdesystem.jl
+++ b/src/systems/diffeqs/sdesystem.jl
@@ -343,7 +343,7 @@ function Girsanov_transform(sys::SDESystem, u; θ0 = 1.0)
     grad = Symbolics.gradient(u, states(sys))
 
     noiseeqs = get_noiseeqs(sys)
-    if typeof(noiseeqs) <: Vector
+    if noiseeqs isa Vector
         d = simplify.(-(noiseeqs .* grad) / u)
         drift_correction = noiseeqs .* d
     else
@@ -366,7 +366,7 @@ function Girsanov_transform(sys::SDESystem, u; θ0 = 1.0)
 
     noiseqsθ = θ * d
 
-    if typeof(noiseeqs) <: Vector
+    if noiseeqs isa Vector
         m = size(noiseeqs)
         if m == 1
             push!(noiseeqs, noiseqsθ)