checking in before refactoring interpolation

errs/errs.go

@@ -0,0 +1,10 @@
+package errs
+
+import (
+	`errors`
+)
+
+var (
+	ErrBadType error = errors.New("a bad type was passed")
+	ErrNilPtr  error = errors.New("a nil pointer was passed")
+)