enum class CollectionType {

		Sequence,

		Set

	};

	enum class StringType {

		OctetString,

		UTF8String,

		NumericString,

		PrintableString,

		T61String,

		VideotexString,

		IA5String,

		GraphicString,

		VisibleString,

		GeneralString,

		UniversalString,

		CharacterString,

		BMPString,

	};

	virtual void writeCollectionStart(CollectionType type) = 0;

	virtual void writeCollectionEnd() = 0;

	virtual void writeBoolean(bool value) = 0;

	virtual void writeNull() = 0;

	virtual void writeInteger(int64_t value) = 0;

	virtual void writeString(StringType type, std::string value) = 0;

	// virtual void writeOID(std::string value) = 0;

	// Object descriptor

	// virtual void writeReal(float value) = 0;

	// Enumerated

	// Embedded PVD

	// Relative OID

	// TIME

	// UTC time

	// Generalized time

	// Date

	// Time of day

	// Date-time

	// Duration

	// OID-IRI

	// Relative OID-IRI

	void writeCollectionStart(CollectionType type) {

		handler->writeCollectionStart(type);

	}

	void writeCollectionEnd() {

		handler->writeCollectionEnd();

	void writeBoolean(bool value) {

		handler->writeBoolean(value);

	void writeNull() {

		handler->writeNull();

	}

	void writeInteger(int64_t value) {

		handler->writeInteger(value);

	}

	void writeString(StringType type, std::string value) {

		handler->writeString(type, value);