Syntax error using reduce() in puppet class

Question

I am trying to figure out whether my host has any of the ips in the $target_node_ips array

$is_target_node = $target_node_ips.reduce(false) |$memo, $entry| { has_ip_address($entry) or $memo }

however this leads to the following error

Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Syntax error at '.'; expected '}' at service.pp:44

Can anybody shed some light on what's wrong? Both puppet master and the client run puppet 3.2

Answer 1

OK, I just figured out that reduce() is experimental in 3.2 and it requires the future parser to be enabled for it to work.