I get an error when running this because the `p_int` keyword is not supported https://github.com/bradcarman/ModelingToolkitDesigner.jl/blob/fdbd25a575294d049cb9befc7beda7fea199176a/README.md#L74 It actually was added in https://github.com/SciML/ModelingToolkitStandardLibrary.jl/pull/352 so a new release of ModelingToolkitStandardLibrary would fix it