Can I pass a shader in LWRP shader graph as parameter?

Hi, I am trying to make a shader using shader graph with others shader (written in code). I saw a cool shader asset on asset store and I import it on my LWRP project. I have only one simple function in my shader graph which is distance. (e.g. if distance > value use a color else use another color)

Is it possible to pass the shader in shader graph?
P.S I know nothing to code a shader but I know some basic on shader graph.
btw this is the shader im using (https://assetstore.unity.com/packages/vfx/shaders/minimalist-free-lowpoly-flat-gradient-shader-96148)