Function r2r_rcl::rcutils_hash_map_get_next_key_and_data

pub unsafe extern "C" fn rcutils_hash_map_get_next_key_and_data(
    hash_map: *const rcutils_hash_map_t,
    previous_key: *const c_void,
    key: *mut c_void,
    data: *mut c_void,
) -> rcutils_ret_t