Kovenant. Promises for Kotlin.
'nl.komponents.kovenant:kovenant:2.4.0'
<dependency>
<groupId>nl.komponents.kovenant</groupId>
<artifactId>kovenant</artifactId>
<version>2.4.0</version>
</dependency>
<dependency org="nl.komponents.kovenant" name="kovenant" rev="2.4.0"/>
"nl.komponents.kovenant", "kovenant", "2.4.0"