import npm modules asynchronously in react.js

I am using parcel as a bundler in React.js project.

How to load npm modules asynchronously in react.js?

There is only one page that uses one specific npm module so I didn't need to load it at first loading.

By avoiding this, I would like to reduce the bundle size.

Could you let me the proper way to do this?

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And also, if I understood anything wrongly about the bundle size optimization and lazy loading, please let me know.

from import npm modules asynchronously in react.js