pub unsafe extern "C" fn zxio_shutdown(
io: *mut zxio_t,
options: zxio_shutdown_options_t,
out_code: *mut i16,
) -> zx_status_tpub unsafe extern "C" fn zxio_shutdown(
io: *mut zxio_t,
options: zxio_shutdown_options_t,
out_code: *mut i16,
) -> zx_status_t