World Edit Mooshroom spawner ID?

does anyone know the ID or how to do it at all. no matter what i cant figure it out, its like theirs a way to make a mob spawner for every natural occuring mob, except the mooshroom! whats up with that? you can get plugins for Iron and Snow Golems but not mooshrooms, you can get anything but mooshrooms, i even found an enderdragon spawner, whats up with that?! you can get the largest mob in the game but not one of the simplest? its just a cow with mushrooms.

somone help please

thanks in advance