is there an way to use goog.labs.format.csv?

I can't even get goog.string to work:

cljs.user=> (require 'goog.string)
nil
cljs.user=> (goog.string/format "%s" "abc")
goog.string.format is not a function. (In 'goog.string.format("%s","abc")', 'goog.string.format' is undefined)