the example program generates a eeror with "@lens not defined in Main"

[chaosye0]

Hello! I'm using julia 1.11.0 the latest version. And I found a problem running the example programs in "examples" folder: ~\BifurcationKit\examples\brusselator.jl
according to the documents, @lens looks like a predefined parameter used for plot, why it should be defined manully?

julia> include("brusselator.jl")
ERROR: LoadError: UndefVarError: @lens not defined in Main
Suggestion: check for spelling errors or missing imports.
Stacktrace:
[1] top-level scope
@ :0
[2] include(fname::String)
@ Main .\sysimg.jl:38
[3] top-level scope
@ REPL[16]:1
in expression starting at D:\BifurcationKit\examples\brusselator.jl:95
in expression starting at D:\BifurcationKit\examples\brusselator.jl:95

[chaosye0]

forget it, I found my example program file is outdated