Publish types for kwargs/classes exposed to the user-side

[nolar]

What do these changes do?

Publishes all object types which are exposed to the user-side: as handlers' kwargs or as overridable classes.

Description

This was actually promised in #194, but not actually implemented.

With these types exposed, the users can type-annotate the kwargs, making them friendly in the IDEs, or or to type-check their operators. It is more wordy than in the examples/docs, but this is how type annotations generally work:

from typing import Any
import kopf

@kopf.on.create('zalando.org', 'v1', 'ephemeralvolumeclaims')
def create_fn(
        spec: kopf.Spec, name: str, namespace: str, patch: kopf.Patch,
        logger: kopf.ObjectLogger, **_: Any):
    ...

Another group of classes exposed are those supposed to be used in the overridden/inherited classes, such as persistence storage classes: the storage classes were exposed, but the types of their arguments were not. This is now fixed.

There are no changes in the behaviour.

The UserDict class is renamed to Memo to make it more clear what kind of an object it is (not only a dict, but also free-named field container). The kwargs remains the same: memo.

Issues/PRs

Issues: #194 #200

Type of changes

• New feature (non-breaking change which adds functionality)

Checklist

• The code addresses only the mentioned problem, and this problem only
• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt

[zincr]

🤖 zincr found 0 problems , 0 warnings

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