TYP: Annotate loadsave and image header classes #1213
Merged
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nb.load()
and (to some extent)nb.save()
are probably the most used functions. They should have some signatures, though the usefulness is bounded as the type checker can't infer the resulting type from the filename.While testing this on a code base I'm writing to be type-checked from the start, I found that everything declared itself as having a
FileBasedHeader
, which is not very useful. I can't come up with something type-variable-ish so that we can deduplicate these and rely on theheader_class
, but oh well.