The arguments to import or use are simply (for most modules)
the names of the subs or variables
to be imported. It is generally
preferable to only import the things you will use, so as to avoid
cluttering the main:: namespace. On the other hand sometimes
you will want to import things that are not imported by
default.
You probably want
use LWP::Simple 'get';
# or
require LWP::Simple;
import LWP::Simple 'get';
# which actually parses as
LWP::Simple->import('get');