Function Astronomy_GravSimInit 

pub unsafe extern "C" fn Astronomy_GravSimInit(
    simOut: *mut *mut astro_grav_sim_t,
    originBody: astro_body_t,
    time: astro_time_t,
    numBodies: c_int,
    bodyStateArray: *const astro_state_vector_t,
) -> astro_status_t