{"ast_node_type":"other","tokens":[{"end":132,"kind":"keyword","start":0,"text":"FormatUnsafeArg,"}]}
    FormatUnsafeArg,         sym::format_unsafe_arg,   format_unsafe_arg,          Target::Struct,         GenericRequirement::None;
    FormatPlaceholder,       sym::format_placeholder,  format_placeholder,         Target::Struct,         GenericRequirement::None;