def self.write_one(object, writer, singular = nil)
singular ||= 'api'
writer.write_start(singular)
href = object.href
writer.write_attribute('href', href) unless href.nil?
ProductInfoWriter.write_one(object.product_info, writer, 'product_info') unless object.product_info.nil?
SpecialObjectsWriter.write_one(object.special_objects, writer, 'special_objects') unless object.special_objects.nil?
ApiSummaryWriter.write_one(object.summary, writer, 'summary') unless object.summary.nil?
Writer.write_date(writer, 'time', object.time) unless object.time.nil?
writer.write_end
end