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Time... if only you had more of it

Just when you’re feeling completely lost, you get a phone call
from the Starbuzz coder who wrote the original version of
the program:

Zzzkzzkkvkk...
Sorry, dude... vvzzz...
Heavy snow... ffzzkk... Phone
connection... pzzzkkkvkk.... I think
you need the.... vzzzkkkk.... time
library!

It seems that she can’t get back because of a storm in the
mountains. But she does make a suggestion. You need to regulate
how often you make a request of the Beans’R’Us web server. One
way to do this is to use the time library. This will apparently
make it possible to send requests every 15 minutes or so, which
should help to lighten the load.
There’s just one thing: what’s a library?

68 Chapter 2