Loosen tolerances that were intended for `float64` values

tests/test_version_stable.py

@@ -16,7 +16,11 @@ def assert_target(name, ob):
     fname = f"tests/testdata/{name}.json"
     if os.path.exists(fname):
         with open(fname) as fh:
-            assert flatten(json.load(fh)) == pytest.approx(flatten(json.loads(json.dumps(ob, sort_keys=True))))
+            # Use relative tolerance of 1e-5 and absolute tolerance of 1e-8 
+            # assuming most metrics work on `float32` values, which is the common 
+            # default floating type across popular libraries (PyTorch, Tensorflow, and JAX).
+            assert flatten(json.load(fh)) == pytest.approx(
+                flatten(json.loads(json.dumps(ob, sort_keys=True))), rel=1e-5, abs=1e-8)
     else:
         with open(fname, 'w') as fh:
             json.dump(ob, fh, sort_keys=True)