Another simple GHPython solution (i.e. sending arbitrary structured data from one GHPython component to another) is to structure the data in a Python dictionary (i.e. key/value), wrap that in a list/tuple and output that, it’ll pass as an item along the wire, so set the receiving component input parameter to Item Access and No Type Hint and the data will go right through maintaining its structure:
180725_PassDict_GHPy.gh (3.6 KB)