diff --git a/.gitignore b/.gitignore
index 849ddff..d1584c7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 dist/
+**/__pycache__
+credentials
diff --git a/Justfile b/Justfile
index c0c1b39..17da51f 100644
--- a/Justfile
+++ b/Justfile
@@ -8,6 +8,6 @@ build:
   poetry build
 
 publish:
-  poetry publish --build
+  poetry publish --build --username __token__ --password $(<credentials/pypi-token)
 
 
diff --git a/latch_data_validation/data_validation.py b/latch_data_validation/data_validation.py
index 9319234..e4dcc7d 100644
--- a/latch_data_validation/data_validation.py
+++ b/latch_data_validation/data_validation.py
@@ -79,7 +79,7 @@ def explain(self, indent: str = ""):
 
         pretty_msg = prettify(
             self.msg,
-            add_colon=True
+            add_colon=True,
             # add_colon=len(self.children) > 0 or len(self.details) > 0
         )
         res = f"{indent}{pretty_msg}\n"
@@ -405,6 +405,7 @@ def validate(x: JsonValue, cls: type[T]) -> T:
             "code.namespace": validate.__module__,
         },
     ) as s:
-        s.set_attribute("validation.target", cls.__qualname__)
+        # ayush: union types dont have a `__qualname__` attr
+        s.set_attribute("validation.target", getattr(cls, "__qualname__", repr(cls)))
 
         return untraced_validate(x, cls)