def created_at
      time = @attrs[:created_at]
      return if time.nil?
      time = Time.parse(time) unless time.is_a?(Time)
      time.utc
    end
def created_at
      time = @attrs[:created_at]
      return if time.nil?
      time = Time.parse(time) unless time.is_a?(Time)
      time.utc
    end
Time when the object was created on Twitter

 @return [Time]