pub unsafe extern "C" fn mbedtls_mpi_is_prime_ext( X: *const mbedtls_mpi, rounds: c_int, f_rng: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: *mut c_uchar, arg3: usize) -> c_int>, p_rng: *mut c_void, ) -> c_int