RenderMan LPE style custom AOV construction

RenderMan allows you to construct AOV outputs based on a system called LPE, exposing available BXDF shader sub-functions, allowing you to output for example, just the SSS portion of the standard BXDF PxrSurface. Having this kind of available sub-function output from the Blender BSDF would be fantastic and incredibly helpful, especially when combined with Cryptomatte.