How to add cell-padding or cell-spacing in ruby pdf-writer

I have seen an ocean of options in pdf-writer Simple-Table, but it doesn't seem to have the cell-spacing and cell-padding.

1) Is it implemented, did i miss it? If so, can you plz gimme a line of code.

2) If not implemented, is there any work-around?

Any help is appreciated.

THanks

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