kotlin @JvmOverloads fun String.trimToNull(delimiter: Char = ' '): String? { } kotlin val list = listOf(1, 2, 3, 4) val evenNumbers = list.filter { element -> element % 2 == 0 } kotlin import kotlin.time.Duration import java.time.Duration as JavaDuration fun main() { } <dependencies> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-stdlib</artifactId> <version>1.6.0</version> </dependency> </dependencies> groovy dependencies { implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.6.0' }