How to create a function in postgresql with an unknown number of arguments and unknown types?

Question

PostgreSQL

Good day everyone.
I don’t understand how to create functions with a variable number of arguments -
now I customize a separate function for each specific case, but I understand that this is a crutch.
it can be function(int, bool, int), or it can be function (bool, int, bool, int) - I want to cast to one type already inside the function.
Tell me how to arrange everything correctly?
Thanks in advance

Answer 1

https://www.postgresql.org/docs/current/static/xfu...
Roll up to 36.4.10. Polymorphic SQL Functions
But this is a direct path to hell.