Decent and mostly-complete (for common usage) typings can be found here:
https://github.com/angular-google-chart/google-chart-typings
I cannot add labels, but this issue needs a Definition:Request label.
Since those typings appear to have been written by the package author, they could be bundled. CC @nbering
@andy-ms I am the maintainer of https://github.com/angular-google-chart/angular-google-chart, but Google Charts themselves are maintained by Google. The typings I put out there are kind of half-done. I embarked on a typescript migration of my project, but ran out of bandwidth when I changed jobs. I'm open to pull requests if anyone wants to help me finish them.
I think this is already covered by this: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/be94d35589e92323ab5396637c63819887bdecfa/types/google.visualization/index.d.ts
@gmoore-sjcorg I haven't tried that type definition myself, but at a quick glance it looks complete and up-to-date from my knowledge of the google visualization library.
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I think this is already covered by this: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/be94d35589e92323ab5396637c63819887bdecfa/types/google.visualization/index.d.ts