feat: plot 2d pull directly #479

Job	Run time
Build documentation	2m 26s
Unit tests (ubuntu-20.04, 3.7)	17m 56s
conda install latest tensorflow (ubuntu-20.04)	20m 39s
conda install (ubuntu-20.04)	4m 28s
Unit tests (macos-11, 3.7)	15m 42s
Unit tests (ubuntu-20.04, 3.6)	15m 46s
Unit tests (ubuntu-20.04, 3.8)	15m 30s
Test uproot3 (ubuntu-20.04, 3.7)	24m 18s
Style checks	2m 49s
Coverage	0s
	1h 59m 34s

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