def get_hash(name)
      if (item = dynamo_get_item(name))
        JSON.parse(item)
      else
        ::Hash.new
      end
    end
def get_hash(name)
      if (item = dynamo_get_item(name))
        JSON.parse(item)
      else
        ::Hash.new
      end
    end
Load the Hash with the given name.
 @param name [String] Name of the hash.
 @return [Hash] A Hash that maps String objects to strings or numbers.