Define interactive function with arguments

[Christopher Dimech]

I want to call a function that takes a numeric argument
to I can shift paragraphs.

( defun Transpose-Paragraphs-Arg (arg)
    "Transfer paragraph backward"
    (interactive)
    (transpose-paragraphs arg)
)

I have been using "M-x Transpose-Paragraphs-Arg"

But then, how does one pass the value of the argument
to the function.

Regards
Christopher