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@financial-times/o-expander lists no main file and has no index.js, so it can't be directly required. If this is a mistake, please let us know. It may however contain internal files that you can require manually:
require("@financial-times/o-icons/package.json"); // @financial-times/o-icons is a peer dependency.
require("@financial-times/o-normalise/package.json"); // @financial-times/o-normalise is a peer dependency.
require("@financial-times/o-viewport/package.json"); // @financial-times/o-viewport is a peer dependency.
// require("@financial-times/o-expander/[??]")
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