add demo class BoringModel (#11)

Author: Borda

requirements.txt

@@ -1,3 +1,4 @@
 # NOTE: once we add more dependencies, consider update dependabot to check for updates
 
 lightning-sdk >=0.1.35
+lightning-utilities

src/litmodels/demos/__init__.py

@@ -0,0 +1,14 @@
+"""Define a demos model for examples and testing purposes."""
+
+from lightning_utilities import module_available
+
+__all__ = []
+
+if module_available("lightning"):
+    from lightning.pytorch.demos.boring_classes import BoringModel, DemoModel
+
+    __all__ += ["BoringModel", "DemoModel"]
+elif module_available("pytorch_lightning"):
+    from pytorch_lightning.demos.boring_classes import BoringModel, DemoModel
+
+    __all__ += ["BoringModel", "DemoModel"]