{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"Avr(AvrInlineAsmRegClass::reg_pair)"}]}
            Avr(AvrInlineAsmRegClass::reg_pair) => "r",
            Avr(AvrInlineAsmRegClass::reg_upper) => "d",
            Avr(AvrInlineAsmRegClass::reg_iw) => "w",