func (driver *Proxy) TimeOfLastDriverKeepalive() int64 {
	return driver.toDriverCommandBuffer.ConsumerHeartbeatTime()
}
TimeOfLastDriverKeepalive gets the time of the last keep alive update sent to media driver
package driver
import (
	"github.com/lirm/aeron-go/aeron/atomic"
	"github.com/lirm/aeron-go/aeron/command"
	rb "github.com/lirm/aeron-go/aeron/ringbuffer"
)
type Proxy struct {
	toDriverCommandBuffer *rb.ManyToOne
	clientID              int64
}
func (driver *Proxy) Init(buffer *rb.ManyToOne) *Proxy {
	driver.toDriverCommandBuffer = buffer
	driver.clientID = driver.toDriverCommandBuffer.NextCorrelationID()
	logger.Infof("aeron clientID:%d", driver.clientID)
	return driver
}
func (driver *Proxy) ClientID() int64 {
	return driver.clientID
}