How to copy the source of function to another one in Powershell?

Question

Let a function test

function test { }

I want to have function test2 = function test and be able to modify function test without impacting the copy test2: don't know if it is even possible :)

Update: I want to override the original function but kept it under another name so as to be able to call it from the second one.

I know about $function:test but I can't see afterwards how to use it for that purpose.

Answer 1

If you are asking how to copy the content of one function into another:

function function1 {
  "function output"
}

$Function:function2 = $Function:function1

Get-Content Function:function2
# output: "function output"