I want to design specific class hierarchy consisting of three classes: Certificate, Organization, User. Both Certificate and Organization seem to me to be kinda
lightningchart
private-members
python-appium
semgrep
word-boundaries
twitch
udeploy
bigrquery
horizontal-alignment
dexguard
fabric.io
uitest
paxos
weld-junit5
laravel-4.2
ormlite-servicestack
singleton-methods
wan
hound
commaide
z80
difference-in-difference
gattlib
python-contextvars
mockwebserver
qset
jnotify
forecast
assemblyinfo
std-invoke