sessionPasskey

@get:JvmName(name = "getSessionPasskey")
@set:JvmName(name = "setSessionPasskey")
var sessionPasskey: ByteString
The node generates this key and sends it with any get_x_response packets.
The client MUST include the same key with any set_x commands. Key expires after 300 seconds.
Prevents replay attacks for admin messages.

bytes session_passkey = 101;