Squashed 'src/Pingpong/Generators/' changes from 23f9e23..73d3b40
Squashed 'src/Pingpong/Generators/' changes from 23f9e23..73d3b40

73d3b40 use develop version

git-subtree-dir: src/Pingpong/Generators
git-subtree-split: 73d3b40e2988ee10580277d2b4eabc297abd621c

pingpong-labs/sky,pingpong-labs/sky,pingpong-labs/sky