Type alias EffectContents
EffectContents: ["anvil" | "auto horn" | "bird whistle" | "cannon" | "duck call" | "gun shot" | "klaxon horn" | "lions roar" | "lotus flute" | "megaphone" | "police whistle" | "siren" | "slide whistle" | "thunder sheet" | "wind machine" | "wind whistle"]