chore: delegated properties - missing import; lazy on the same Thread (#1430)
chore: delegated properties - missing import; lazy on the same Thread (#1430)

* Lazy Delegated properties no the same Thread

Clarified requirements for non-synchronized `by lazy {...}`

* Adding a missing import

This makes it easier for developers to run it.

hltj/kotlin-web-site-cn,hltj/kotlin-web-site-cn,hltj/kotlin-web-site-cn,hltj/kotlin-web-site-cn,hltj/kotlin-web-site-cn,JetBrains/kotlin-web-site,hltj/kotlin-web-site-cn,JetBrains/kotlin-web-site,JetBrains/kotlin-web-site,JetBrains/kotlin-web-site,JetBrains/kotlin-web-site,JetBrains/kotlin-web-site