Dude, you have to download it, check the link I've posted.
After you download the library, unzip the file to your EXTRAS folder, if you don't have one, then create that folder, you will have to define the path in the Designer as well. (more info
HERE)
There are 2 kinds of libraries, Official (part of B4A) and 3rd party, the latter are libraries made by the community members.