Creates the event.
The op.
The d member.
Optionalmodel: unknownThe typed reading of the frame, if any.
ReadonlydataThe d member without null members (the envelope of a dispatch).
ReadonlymodelThe frame read as its generated type (GatewayReady, GatewayResumed, GatewayCursor,
GatewayResyncRequired), a GatewayOpError for error, undefined for dispatch.
Readonlyopdispatch, cursor, ready, resumed, resync_required or error.
One server frame that matters to an event source.