move serializable parts list into private method
move serializable parts list into private method

raghavendra-prithvi/axlsx,randym/axlsx,Debiancc/axlsx,bradstewart/axlsx,pedrogarrett/axlsx,romuloceccon/axlsx,nilbus/axlsx,woto/axlsx,mromulus/axlsx,clarkcutler/axlsx,sr-education/axlsx,kappiah/axlsx,alexanderfrankel/axlsx,sh-ft/axlsx,VueOps/axlsx,legitscript/axlsx