How to run compgen using sudo?

Question

linux

Good afternoon.
There is a Go product that uses bash autocomlete (command[TAB]).
Command completion works correctly for both normal user and super user. However, if we try to use autocompletion by running the command with sudo, it will throw an error.

$ sudo ./util cl[TAB]
bash: compgen: warning: -C option may not work as expected
Command not found: compgen
Display all 221 possibilities? (y or n)

I checked compgen doesn't start when using sudo.

$ sudo compgen -c
sudo: compgen: command not found

What needs to be done to run compgen using sudo?

Answer 1

which compgen
says:?