How to get a (repeat) number that is passed to a vim function [duplicate]

Question

Let's say I have a mapping such as this:

nnoremap K :call MyFunction()

And my function is:

func MyFuction()
    echom ("how to get the 10 passed to me?")
endfunc

Let's say the user presses 10K on their keyboard. Is there a way for me to retrieve the number 10 from the MyFunction()? The function is called similar to:

:.,.+9 call MyFunction()