From 2d4fefe42e091b0a674e7ca12244e446c8fd67dd Mon Sep 17 00:00:00 2001
From: Leon Riesebos <leon.riesebos@duke.edu>
Date: Tue, 20 Apr 2021 19:13:12 -0400
Subject: [PATCH] added DefaultMissing to __all__

Signed-off-by: Leon Riesebos <leon.riesebos@duke.edu>
---
 artiq/language/environment.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/artiq/language/environment.py b/artiq/language/environment.py
index 5e0b46589..7992fe3af 100644
--- a/artiq/language/environment.py
+++ b/artiq/language/environment.py
@@ -8,7 +8,7 @@ from artiq.language import units
 from artiq.language.core import rpc
 
 
-__all__ = ["NoDefault",
+__all__ = ["NoDefault", "DefaultMissing",
            "PYONValue", "BooleanValue", "EnumerationValue",
            "NumberValue", "StringValue",
            "HasEnvironment", "Experiment", "EnvExperiment"]