func (s *Cloudflare) String() string {
	return "cloudflare"
}
String is a custom printer for debugging purposes.
package sources
import (
	"context"
	"encoding/json"
	"errors"
	"net/http"
	"runtime"
	doh "github.com/picatz/doh/core"
	"golang.org/x/sync/semaphore"
)
type Cloudflare struct {
	Lock *semaphore.Weighted
}