# Serialize `self` to JSON
	#
	# Set `plain = true` to generate standard JSON, without deserialization metadata.
	# Use this option if the generated JSON will be read by other programs or humans.
	# Use the default, `plain = false`, if the JSON is to be deserialized by a Nit program.
	#
	# Set `pretty = true` to generate pretty JSON for human eyes.
	# Use the default, `pretty = false`, to generate minified JSON.
	#
	# This method should not be refined by subclasses,
	# instead `accept_json_serializer` can customize the serialization of an object.
	#
	# See: `JsonSerializer`
	fun serialize_to_json(plain, pretty: nullable Bool): String
	do
		var stream = new StringWriter
		var serializer = new JsonSerializer(stream)
		serializer.plain_json = plain or else false
		serializer.pretty_json = pretty or else false
		serializer.serialize self
		stream.close
		return stream.to_s
	end