For #3917. make init(label: String?) convenient initializer#3973

Merged

jjatie merged 2 commits intomasterfrom 3917

Apr 30, 2019

+12-4

Commits on Apr 26, 2019

fix #3917 . make init(label: String?) to be a convenient init to enable auto inheritance.
liuxuan30
committed
add UT for default dataSet label
liuxuan30
committed