Vtc.Framerate.new-exclamation-mark

You're seeing just the function new-exclamation-mark, go back to Vtc.Framerate module for more information.

Specs

new!(Ratio.t() | integer() | float() | String.t(), Vtc.Ntsc.t()) :: t()

As Vtc.Framerate.new/2 but raises an error instead.