dtype aligns in nll #662

Job	Run time
Build documentation	2m 30s
conda install (ubuntu-22.04)	2m 58s
conda install latest tensorflow (ubuntu-22.04)	4m 5s
Unit tests (ubuntu-22.04, 3.10)	16m 12s
Unit tests (macos-latest, 3.11)	9m 9s
Compatibility Testing (ubuntu-20.04, 3.6)	14m 43s
Test uproot3 (ubuntu-22.04, 3.10)	15m 50s
Unit tests (ubuntu-22.04, 3.7)	15m 37s
Style checks	2m 16s
Unit tests (ubuntu-22.04, 3.11)	16m 12s
Coverage (ubuntu-22.04, 3.10)	34s
	1h 40m 6s

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