add @types/express as optional peerDependency

[brokenmass]

Closes #66

[changeset-bot]

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Latest commit: 04a9dc3

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[mormahr]

Hey, we're using changesets to manage the changelog.

Please run yarn chageset, select patch and enter the change description. Something like "Fix TypeScript dependencies for yarn v2 users, by including @types/express as an optional dependency" will do ☺️.

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Did you look into optionalDependency? Whats the difference to peerDependenciesMeta?

Thanks for contributing!

[brokenmass]

there isn't a real difference between optionalDependency and peerDependenciesMeta [].optional (see here : npm/cli#224) and all package manager supports both. peerDependenciesMeta[].optional looks cleaner and is going to be a safer long term standard.

@mormahr : pr updated.

Thanks for you library, I'm glad to contribute back a tiny bit !

[mormahr]

Perfect, thanks for sqashing the commits!

[brokenmass]

@mormahr : would you be so kind to trigger a release ?

[mormahr]

Yes, of course. Been busy yesterday. 😂

[mormahr]

@brokenmass Available as v4.0.1