Is there any function in R to calculate the sample size and power of a Binomial regression of event probabilities over time with a complementary log-log (cloglog).

Can I use the follwoing function?

cloglog.sample.size(p.alt, n = NULL, p = 0.5, power = 0.8, alpha = 0.05,
                    alternative = c("two.sided", "greater", "less"), exact.n = FALSE,
                    recompute.power = FALSE, phi = 1)