# File lib/validates_timeliness/orm/active_record.rb, line 33
          def timeliness_column_for_attribute(attr_name)
            columns_hash.fetch(attr_name.to_s) do |key|
              validation_type = _validators[key.to_sym].find {|v| v.kind == :timeliness }.type.to_s
              ::ActiveRecord::ConnectionAdapters::Column.new(key, nil, validation_type)
            end
          end