message.author
// Fetching a message by ID (Discord.js versions 9 through 11)
// note: you can line return right before a "dot" in JS, that is valid.
message.channel.fetchMessages({around: "352292052538753025", limit: 1})
.then(messages => {
const fetchedMsg = messages.first(); // messages is a collection!)
// do something with it
fetchedMsg.edit("This fetched message was edited");
});
// THIS CHANGES IN DISCORD VERSION 12!!!!!
message.channel.messages.fetch({around: "352292052538753025", limit: 1})
.then(messages => {
messages.first().edit("This fetched message was edited");
});