errorCode{number} The HTTP/2 error code specified in theGOAWAYframe.lastStreamID{number} The ID of the last stream the remote peer successfully processed (or0if no ID is specified).opaqueData{Buffer} If additional opaque data was included in theGOAWAYframe, aBufferinstance will be passed containing that data.
The 'goaway' event is emitted when a GOAWAY frame is received.
The Http2Session instance will be shut down automatically when the 'goaway'
event is emitted.
