feat: Disallow incomplete definitions

l0b0 · l0b0 · commit 3b9988ac4593 · 2021-07-08T10:36:59.000+12:00
See <https://mypy.readthedocs.io/en/latest/command_line.html#cmdoption-mypy-disallow-incomplete-defs>.
diff --git a/mypy.ini b/mypy.ini
@@ -1,5 +1,6 @@
 [mypy]
 disallow_any_generics = True
+disallow_incomplete_defs = True
 disallow_untyped_defs = True
 ignore_missing_imports = True
 no_implicit_optional = True
