{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"InlineAsmTemplatePiece::Placeholder"}]}
                InlineAsmTemplatePiece::Placeholder { operand_idx, modifier: _, span: _ } => {
                InlineAsmTemplatePiece::String(ref s) => template_str.push_str(s),
                    match operands[operand_idx] {