I would like to know if the integrate_ode solver can take random time span for ts variable. In particular, I am using the solver
y = integrate_ode_rk45(ode, y0, t0, ts, params, x_r, x_i, 1e-5, 1e-3, 5e2);
and would like to have the starting point of the time span ts to be random draws from a posterior/prior distribution. Is it possible to do this in stan?