[DSP-16] Add set operations to Indigo
Description
Problem: We need set operations in Indigo for our private project.
Solution: Add these operations to Indigo.Expr
Related issue(s)
https://issues.serokell.io/issue/DSP-16
✅ Checklist for your Merge Request
Related changes (conditional)
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Tests (see short guidelines)
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If I added new functionality, I added tests covering it. -
If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
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Documentation
Stylistic guide (mandatory)
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My commits comply with the following policy. -
My code complies with the style guide.
Edited by Roman Melnikov