fix: fix connect example #398

Job	Run time
Cross Build Only (x86_64-unknown-freebsd)	51s
Minimal Supported Rust Version	1m 0s
clippy_check	1m 26s
cargo deny	30s
Cross Test (i686-unknown-linux-gnu)	1m 27s
Checking fmt	24s
Checking docs	1m 8s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	1m 54s
codespell	7s
Android Build Only (aarch64-linux-android)	1m 8s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	1m 54s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	1m 59s
Android Build Only (armv7-linux-androideabi)	1m 8s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	1m 34s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	1m 29s
CI Test Suite / Tests (ubuntu-latest, stable, none)	1m 24s
check_semver	1m 17s
CI Test Suite / Tests (ubuntu-latest, stable, all)	1m 16s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	1m 30s
CI Test Suite / Tests (ubuntu-latest, stable, default)	1m 24s
	24m 50s

Provide feedback