Dismiss Shadowfiend macro

Hello, as title says, is there a macro to dismiss shadowfiend?

Sometimes when Shadowfiend is up I need to Mind Control a person but I can't since I already have a pet. Or when I want to exit combat faster and things like this w/e I need a fast macro, it takes too much time to mouseclick pet on top-left and "dismiss", so a macro would be perfect!

Thanks for the help.

Code:

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/script PetDismiss();
/petdismiss

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Works perfectly! Many thanks dude =)