I don't know how to use this Ci_reporter 2.0.0

hi,

Anybody here using this Ci_reporter to generate xml report? I am using
ci_reporter 1.9.3 and it’s working perfectly, for that I am including
the following line in my class,

class Raj < Watir::TestCase
require ‘ci/reporter/rake/test_unit_loader’

end

But I don’t understand how to use this ci_reporter 2.0.0 which one needs
to be required in the place of test_unit_loader, Can anyone please help
me to resolve this problem?