amazon web services - Sinatra/Ruby DynamoDB get_item returning '#' sign instead of integers -

i using sinatra app retrieve item dynamodb. receiving # signs integers stored. using recent aws sdk. hk hash key.

my dynamodb looks this:

   hk                 b  2015-06-13    4         4

my code in route looks like:

  resp = dynamo_client.get_item(  # required   table_name: "test",   # required   key: {     "hk" => date.today.to_s    })   resp.data[:item]

what when hitting url is:

["a", #]["hk", "2015-06-13"]["b", #]

why '#' signs instead of values?

Szoka