Previewing Unreal HLSL Shaders in Maya

I’m working on a tool to allow previewing and syncing environments between Unreal and Maya.
Found out I could get the HLSL code for materials created in unreal and wanted to try loading that in maya.
Stuck on the include for “UniformBuffers/Material.usf”

Any one know where this exists? It’s not located in the Shaders directory included in the engine.