From 28260eb2ff0e3ba3b3bb19de1a6d51a9b0a12dcb Mon Sep 17 00:00:00 2001
From: Evgeniy Kulikov <kim@nspcc.ru>
Date: Wed, 14 Oct 2020 22:00:39 +0300
Subject: [PATCH] [#147] Add constant error type

closes #147

Signed-off-by: Evgeniy Kulikov <kim@nspcc.ru>
---
 internal/error.go | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 internal/error.go

diff --git a/internal/error.go b/internal/error.go
new file mode 100644
index 0000000..537c02c
--- /dev/null
+++ b/internal/error.go
@@ -0,0 +1,9 @@
+package internal
+
+// Error is constant type error.
+type Error string
+
+// Error implementation of error interface.
+func (e Error) Error() string {
+	return string(e)
+}