Concepts

DataHandle and Available Subclasses

TeeHandle	PartHandle	MemoryHandle	PeekHandle	AIOHandle
EmptyHandle	AsyncHandle	SeekableHandle	SharedHandle	StatsHandle
PartFileHandle	URLHandle	EasyCurlHandle	MultiSocketHandle	FileHandle
InstantTCPSocketHandle	PipeHandle	FTPHandle	PooledHandle	MultiHandle
BufferedHandle	TransportHandle	MMappedFileHandle	RawFileHandle	TCPHandle
FileDescHandle