Buy John Coene a drink

$3
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Open-source developer.

If you like my work, buy me a drink, it'll be used to produce more of it; you can also find me on github sponsors.

Ted Kwartler
Ted Kwartler bought a drink.
kavenacca
kavenacca bought 3 drinks.
Paul Simmering bought a drink.

Thanks for making echarts4r

Hamze Dokoohaki bought a drink.

Awesome job man ! keep up the good work. 

Iaroslava bought 3 drinks.

thanks.