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[astrojuanlu]

Work in progress. I plan to make small refactors and API changes to the library as I progress.

To begin with, the enumerations no longer use auto(), and I introduced an attrs hook to transform the fields with an enumeration type.

I now have to figure out what to do with the defaults, since the library annotations have been wrong since the beginning: name: int = attr.ib(default=None) is invalid, and it should have Optional[int] as type instead.

[codecov-io]

Codecov Report

Merging #86 (a7f6276) into master (901dc71) will decrease coverage by 0.22%.
The diff coverage is 98.44%.

@@            Coverage Diff             @@
##           master      #86      +/-   ##
==========================================
- Coverage   99.19%   98.97%   -0.23%     
==========================================
  Files          12       13       +1     
  Lines         749      778      +29     
==========================================
+ Hits          743      770      +27     
- Misses          6        8       +2     

Impacted Files	Coverage Δ
src/czml3/base.py	93.93% <ø> (-0.66%)	⬇️
src/czml3/utils.py	100.00% <ø> (ø)
src/czml3/meta.py	90.47% <90.47%> (ø)
src/czml3/common.py	100.00% <100.00%> (ø)
src/czml3/enums.py	100.00% <100.00%> (ø)
src/czml3/examples/simple.py	100.00% <100.00%> (ø)
src/czml3/properties.py	100.00% <100.00%> (ø)

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[astrojuanlu]

From #89 (comment):

Just realized locally that PEP 563 -- Postponed Evaluation of Annotations breaks this approach. I'll have to rework it from scratch.
Closing.