package main
import "errors"
type MyError struct{}
func (MyError) Error() string { return "" }
func main() {
var me = MyError{}
var se = errors.New("foo")
println(errors.As(me, &se))
}
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GO Go tests @golangtests · 7.82K subscribers 
package main
import "errors"
type MyError struct{}
func (MyError) Error() string { return "" }
func main() {
var me = MyError{}
var se = errors.New("foo")
println(errors.As(me, &se))
}