D2:UML Class
https://d2lang.com/tour/uml-classes/
https://d2.lucas.tools/?script=bJAxbyoxEIR7_4rR0dyJ9ygor-bV70QbpTDnPdhw7DrePRCK8t8jgxSlSGdrxt_MeLfFEItR6fERADvFTD3GOZqFAKwLxVRF1s1-Edo_rgFYYUdTXGbHlY0PPLPfwYY1TCEKIUpwhWUaebpvAvBEDWo90jaabwY1dlYJD95Q-BqdMDHNqfr_zqrneKKYejQvr2URap7WfzbGTPATYVVDcqErieNALEfkuichGka9XEi8vvlm_ZZfmf8L3hZz3ErMYMH7ok4WgGaVic7SCli8a3q0BvPCcvwD0gkH1bl7_FX1tV2PtqCW_SnX9TeW1NZjrcXeduEzfAUAAP__&#.svg
D2:object
class diagram