This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 12]

Qore::SftpConnectionInfo	SFTP connection info hash
Qore::SftpDirInfo	SFTP dir event hash
Qore::SftpFileInfo	SFTP file event hash
Qore::SSH2::SSH2Base	Base class for SFTPClient and SSH2Client
Qore::SSH2::SFTPClient	Allows Qore programs to use the sftp protocol with a remote server
Qore::SSH2::SSH2Client	Allows Qore programs to establish an ssh2 connection to a remote server
Qore::SSH2::SSH2Channel	Allows Qore programs to send and receive data through an ssh2 channel
Qore::SSH2::Ssh2ConnectionInfo	SSH2 connection info hash
Qore::SSH2::Ssh2StatInfo	SSH2 file stat info hash