using ifelse in scala for multiple function

问题:

I like to run the function inside the curly braces based on random number.but it is executing the last function only. which one have to be used it for gatling to execute multiple function like javascript

val scnPostAndGet = scenario("Post and get") .exec(Read_HDAS_Data, Hdas_location, Hdas_Token) .doIfOrElse(_ =>rnd<= 1) {abc;xyz;mainpower}

{lkg;skm;immidiate}

Thanks in Advance