Fix, improve, and rerun codegen script

[almarklein]

• Remove noqa stuff from the classes that get code injected, because it prevents formatting signatures on a single line, which we need to parse the signatures.
• Add a fix for black still formatting long sigs on 3 lines even with huge line length.
• Black also add a comma at the end (previously it did not for this code?)
• The codegen script now also produces a report.

[almarklein]

• Adding long lines (E501) here (is enforced by black anyway).
• Adding undefined type annotations (F821) here until we fix these.