{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"InlineAsmRegClass::Avr(AvrInlineAsmRegClass::reg_pair)"}]}
        InlineAsmRegClass::Avr(AvrInlineAsmRegClass::reg_pair)
        InlineAsmRegClass::Bpf(_) => None,
        | InlineAsmRegClass::Avr(AvrInlineAsmRegClass::reg_iw)