[Tutor] question about *args and functions

[shawn bright]

lo there all,

if i have a function that sometimes needs a value passed to it and sometimes
not, is this where i use *args ?

like this

def some_function(req_var, req_var2, un_req_var):
    do some stuff
    return value

how would i use this if sometimes i need to process un_req_var and sometimes
not ?

thanks
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