pool

type Conn interface {
	// unique id of connection
	Id() string
	// time it was created
	Created() time.Time
	// embedded connection
	transport.Client
}

type Option func(*Options)

type Options struct {
	Transport transport.Transport
	TTL       time.Duration
	Size      int
}

type Pool interface {
	// Close the pool
	Close() error
	// Get a connection
	Get(addr string, opts ...transport.DialOption) (Conn, error)
	// Releaes the connection
	Release(c Conn, status error) error
}