This is a utility node primarily meant to allow you to route specific shading signals to the User lobes in a LaMa Material to be output to an AOV defined by a Light Path Expression.  If the full power of an LPE is not necessary, the PxrTee shading node or a custom node using the OSL debug() closure can be used instead. 

However, if you want an AOV to contain the shading signal as seen only through particular light paths, you'll want to define a custom LPE to gather a particular User lobe in those light paths, and use the LamaLPE node to write your signal into that User lobe. 

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