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//go:build go1.20
// +build go1.20
package errors
import baseErrors "errors"
// Join returns an error that wraps the given errors.
// Any nil error values are discarded.
// Join returns nil if every value in errs is nil.
// The error formats as the concatenation of the strings obtained
// by calling the Error method of each element of errs, with a newline
// between each string.
//
// A non-nil error returned by Join implements the Unwrap() []error method.
//
// For more information see stdlib errors.Join.
func Join(errs ...error) error {
return baseErrors.Join(errs...)
}
// Unwrap returns the result of calling the Unwrap method on err, if err's
// type contains an Unwrap method returning error.
// Otherwise, Unwrap returns nil.
//
// Unwrap only calls a method of the form "Unwrap() error".
// In particular Unwrap does not unwrap errors returned by [Join].
//
// For more information see stdlib errors.Unwrap.
func Unwrap(err error) error {
return baseErrors.Unwrap(err)
}
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