Use this to add regenerator to any library that's compiled using rollup.
N.B. because rollup will compile everything into one bundle, you can install everything as a dev-dependency
npm install --save-dev rollup-regenerator-runtime babel-plugin-transform-runtime babel-plugin-transform-regenerator
{
"plugins": [
"transform-regenerator",
["transform-runtime", {
"helpers": false,
"polyfill": false,
"regenerator": true,
"moduleName": "rollup-regenerator-runtime"
}]
]
}