Add Compat

Author: YingboMa

Project.toml

@@ -7,6 +7,7 @@ version = "8.30.0"
 AbstractTrees = "1520ce14-60c1-5f80-bbc7-55ef81b5835c"
 ArrayInterfaceCore = "30b0a656-2188-435a-8636-2ec0e6a096e2"
 Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
+Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 ConstructionBase = "187b0558-2788-49d3-abe0-74a17ed4e7c9"
 DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
 DiffEqBase = "2b5f629d-d688-5b77-993f-72d75c75574e"
@@ -48,6 +49,7 @@ Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 AbstractTrees = "0.3, 0.4"
 ArrayInterfaceCore = "0.1.1"
 Combinatorics = "1"
+Compat = "3.42, 4"
 ConstructionBase = "1"
 DataStructures = "0.17, 0.18"
 DiffEqBase = "6.103.0"

src/ModelingToolkit.jl

@@ -3,6 +3,7 @@ $(DocStringExtensions.README)
 """
 module ModelingToolkit
 using DocStringExtensions
+using Compat
 using AbstractTrees
 using DiffEqBase, SciMLBase, ForwardDiff, Reexport
 using SciMLBase: StandardODEProblem, StandardNonlinearProblem, handle_varmap