Ruby memcached serialisation logstash

Hi,
I’m currently building a logstash pipeline with the memcached plugin where i set my data to memcach however i notice that when i retrive my data from telnet it always comes out serialised. I wasn’t sure if it was a logstash thing so i went ahead and made a super basic ruby script to test and noticed that its ruby that seems to be serialising the data even though it’s string and I’m not sure how to stop it:
dc = Dalli::Client.new(“localhost:11211”)
input = “randomstuff”
dc.set(input, input)

where i expect this when i telnet memcache for the value:
get randomstuff
VALUE randomstuff 1 21
randomstuff

but instead i get :
get randomstuff
VALUE randomstuff 1 21
I"randomstuff:ET