More general truncation and slicing

[mtfishman]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 53.33333% with 7 lines in your changes missing coverage. Please review.

Project coverage is 76.81%. Comparing base (2f2caf3) to head (e4ade2c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/kroneckerarray.jl	55.55%	4 Missing ⚠️
src/cartesianproduct.jl	50.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #29      +/-   ##
==========================================
- Coverage   77.44%   76.81%   -0.64%     
==========================================
  Files          11       11              
  Lines         776      785       +9     
==========================================
+ Hits          601      603       +2     
- Misses        175      182       +7     

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