ref: ba8c85ed2456c59269214f6e4f1203537fb3f6d4
dir: /protocol/pktline/frame.go/
package pktline
// Frame is one decoded pkt-line frame.
//
// For PacketData, Payload holds frame bytes (possibly empty for 0004).
// For control frames, Payload is nil.
type Frame struct {
Type PacketType
Payload []byte
}