Date: 2024/4<username>username1<message>message 1<message>message 2<username>username2<message>message 1<message>message 2<username>username3<message><username>username1<message>message 1<message>message 2<username>username2<message>message 1<message>message 2<username>username3<message>@username to ping a user and #channel name to mention a channel. <Re: username> before a message to respond to a user. <filename.ext> to mention a file in a link, for example, if you have https://example.com/image.jpg, use <image.jpg>:Date: 2023/12<username>example#0001<message>Hello!<username>example#0002<message><Re: example#0001> Hi, look at this image of a cat! <cat.png><username>example#0001<message><Re: example#0002>