add dep management

vendor/github.com/segmentio/kafka-go/heartbeat.go

@@ -0,0 +1,46 @@
+package kafka
+
+import "bufio"
+
+type heartbeatRequestV0 struct {
+	// GroupID holds the unique group identifier
+	GroupID string
+
+	// GenerationID holds the generation of the group.
+	GenerationID int32
+
+	// MemberID assigned by the group coordinator
+	MemberID string
+}
+
+func (t heartbeatRequestV0) size() int32 {
+	return sizeofString(t.GroupID) +
+		sizeofInt32(t.GenerationID) +
+		sizeofString(t.MemberID)
+}
+
+func (t heartbeatRequestV0) writeTo(w *bufio.Writer) {
+	writeString(w, t.GroupID)
+	writeInt32(w, t.GenerationID)
+	writeString(w, t.MemberID)
+}
+
+type heartbeatResponseV0 struct {
+	// ErrorCode holds response error code
+	ErrorCode int16
+}
+
+func (t heartbeatResponseV0) size() int32 {
+	return sizeofInt16(t.ErrorCode)
+}
+
+func (t heartbeatResponseV0) writeTo(w *bufio.Writer) {
+	writeInt16(w, t.ErrorCode)
+}
+
+func (t *heartbeatResponseV0) readFrom(r *bufio.Reader, sz int) (remain int, err error) {
+	if remain, err = readInt16(r, sz, &t.ErrorCode); err != nil {
+		return
+	}
+	return
+}