he/him 
When using Flow, be careful with empty objects. They are "unsealed" which means that all properties are effectively optional at the original call site. Meaning, this does NOT error: const obj: {foo: string} = {}; This behaviour is specific to an empty object.
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I don’t think that should error. Will check.
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It will not error in Flow, but it will throw a runtime error.
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this took a very long time to make, what am i doing with my life
Thanks. Twitter will use this to make your timeline better. UndoUndo
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