我只想使用以下命令安装 yt-dlp：sudo apt install yt-dlp。但我收到这样的消息：
Reading package lists... Done
Building dependency tree
Reading state information... Done
No apt package "yt-dlp", but there is a snap with that name.
Try "snap install yt-dlp"
E: Unable to locate package yt-dlp
问题是什么snap意思？