Extract complex type creation into separate template

tests/test_basic.py

@@ -17,6 +17,22 @@ def test_basic_constructor():
     assert a.a == 42
 
 
+def test_unions():
+    @dataclass
+    class A:
+        a: int | str
+
+    infl = SchemaInflatorGenerator()
+    fn = infl.schema_to_generator(A)
+
+    a = fn({'a': 42})
+    assert a.a == 42
+    a = fn({'a': '42'})
+    assert a.a == 42
+    a = fn({'a': '42a'})
+    assert a.a == '42a'
+
+
 @dataclass
 class CircA:
     b: CircB