func (ka *KnownAddress) LastAttempt() time.Time {
	return ka.lastattempt
}
LastAttempt returns the last time the known address was attempted.
package addrmgr
import (
	"time"
	"github.com/HcashOrg/hcashd/wire"
)
type KnownAddress struct {
	na          *wire.NetAddress
	srcAddr     *wire.NetAddress
	attempts    int
	lastattempt time.Time
	lastsuccess time.Time
	tried       bool
	refs        int  
}
func (ka *KnownAddress) NetAddress() *wire.NetAddress {
	return ka.na
}