Beta-binomisal in brms

Modeling
1

I have an embarrassing question, but hope people will forgive me (I have a broken wrist, so googling stuff is hard currently). How do I fit a simple conjugate beta-binomial model in brms? I want:

model {
  // Prior on theta:
  theta ~ beta(1, 1); 
  // Likelihood:
  response ~ binomial(N, theta);