TS2305

error TS2305: Module ‘.../proteus‘ has no exported member ‘keys’.

Broken Code ❌

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declare module keys {
}

Fixed Code ✔️

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export module keys {
}

error TS2305: Module ‘.../proteus.keys‘ has no exported member ‘PreKey’.

Broken Code ❌

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export module keys {
}

Fixed Code ✔️

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export module keys {
  class PreKey {
  }
}