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package proxy
import (
"github.com/miekg/coredns/request"
"github.com/miekg/dns"
)
// Exchanger is an interface that specifies a type implementing a DNS resolver that
// can use whatever transport it likes.
type Exchanger interface {
Exchange(request.Request) (*dns.Msg, error)
SetUpstream(Upstream) error // (Re)set the upstream
OnStartup() error
OnShutdown() error
Protocol() protocol
}
type protocol string
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