diff --git a/src/astro_image_display_api/__init__.py b/src/astro_image_display_api/__init__.py
index bf0af0a..09419e0 100644
--- a/src/astro_image_display_api/__init__.py
+++ b/src/astro_image_display_api/__init__.py
@@ -1,3 +1,6 @@
 # SPDX-FileCopyrightText: 2025-present Matt Craig <mattwcraig@gmail.com>
 #
 # SPDX-License-Identifier: MIT
+
+from .interface_definition import *  # noqa: F403
+from .widget_api_test import *       # noqa: F403
diff --git a/src/astro_image_display_api/dummy_viewer.py b/src/astro_image_display_api/dummy_viewer.py
index dc98638..07d537a 100644
--- a/src/astro_image_display_api/dummy_viewer.py
+++ b/src/astro_image_display_api/dummy_viewer.py
@@ -33,7 +33,7 @@ class ImageViewer:
     autocut_options: tuple = ("minmax", "zscale", "asinh", "percentile", "histogram")
     _cursor: str = ImageViewerInterface.ALLOWED_CURSOR_LOCATIONS[0]
     marker: Any = "marker"
-    _cuts: str | tuple[float] = (0, 1)
+    _cuts: str | tuple[float, float] = (0, 1)
     _stretch: str = "linear"
     # viewer: Any
 
diff --git a/src/astro_image_display_api/interface_definition.py b/src/astro_image_display_api/interface_definition.py
index 2d8b414..7f233ff 100644
--- a/src/astro_image_display_api/interface_definition.py
+++ b/src/astro_image_display_api/interface_definition.py
@@ -20,10 +20,6 @@
 
 __all__ = [
     'ImageViewerInterface',
-    'ALLOWED_CURSOR_LOCATIONS',
-    'RESERVED_MARKER_SET_NAMES',
-    'DEFAULT_MARKER_NAME',
-    'DEFAULT_INTERACTIVE_MARKER_NAME'
 ]
 
 
diff --git a/tests/test_astro_image_display_api.py b/tests/test_astro_image_display_api.py
index b796017..b800d27 100644
--- a/tests/test_astro_image_display_api.py
+++ b/tests/test_astro_image_display_api.py
@@ -1,6 +1,6 @@
 from astropy.utils.data import get_pkg_data_contents
 
-from astro_image_display_api.interface_definition import ImageViewerInterface
+from astro_image_display_api import ImageViewerInterface
 
 def test_api_test_class_completeness():
     """
diff --git a/tests/test_dummy_viewer.py b/tests/test_dummy_viewer.py
index a6ae97a..7fbfaef 100644
--- a/tests/test_dummy_viewer.py
+++ b/tests/test_dummy_viewer.py
@@ -1,6 +1,6 @@
 from astro_image_display_api.dummy_viewer import ImageViewer
-from astro_image_display_api.interface_definition import ImageViewerInterface
-from astro_image_display_api.widget_api_test import ImageWidgetAPITest
+from astro_image_display_api import ImageViewerInterface
+from astro_image_display_api import ImageWidgetAPITest
 
 
 def test_instance():