promptMessage = async function (message, author, time, validReactions) {

        time *= 1000;

        for (const reaction of validReactions) await message.react(reaction);

        const filter = (reaction, user) => validReactions.includes(reaction.emoji.name) && user.id === author.id;

        return message
            .awaitReactions(filter, { max: 1, time: time})
            .then(collected => collected.first() && collected.first().emoji.name);