<groupId>io.arrow-kt</groupId>
<artifactId>arrow-effects</artifactId>
</dependency>
+ <dependency>
+ <groupId>io.arrow-kt</groupId>
+ <artifactId>arrow-core</artifactId>
+ </dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-core</artifactId>