--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/google.golang.org/protobuf/internal/errors/is_go113.go	Sun Jul 11 10:35:56 2021 +0200
@@ -0,0 +1,12 @@
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build go1.13
+
+package errors
+
+import "errors"
+
+// Is is errors.Is.
+func Is(err, target error) bool { return errors.Is(err, target) }