Sentry.AWSLambda.wrapHandler is incorrectly marked as returning TResult | undefined #3364

6.2.5

import * as Sentry from '@sentry/serverless';
import { APIGatewayTokenAuthorizerHandler, PolicyDocument } from 'aws-lambda';

declare global {
  namespace NodeJS {
    interface ProcessEnv {
      BASIC_AUTH_USERNAME: string;
      BASIC_AUTH_PASSWORD: string;
    }
  }
}

const credentials = Buffer.from(
  `${process.env.BASIC_AUTH_USERNAME}:${process.env.BASIC_AUTH_PASSWORD}`
).toString('base64');

const AllowPolicyDocument: PolicyDocument = {
  Version: '2012-10-17',
  Statement: [
    {
      Effect: 'Allow',
      Action: ['execute-api:Invoke'],
      Resource: ['arn:aws:execute-api:ap-southeast-2:*']
    }
  ]
};

export const handler: APIGatewayTokenAuthorizerHandler = Sentry.AWSLambda.wrapHandler(
  async event => {
    if (event.authorizationToken === `Basic ${credentials}`) {
      console.log('successfully authenticated');

      return Promise.resolve({
        principalId: 'user',
        policyDocument: AllowPolicyDocument
      });
    }

    console.info(event);

    throw new Error('Unauthorized');
  }
);

src/authorizer/index.ts:28:14 - error TS2322: Type 'Handler<APIGatewayTokenAuthorizerEvent, { principalId: string; policyDocument: PolicyDocument; } | undefined>' is not assignable to type 'APIGatewayTokenAuthorizerHandler'.
  Type 'void | Promise<{ principalId: string; policyDocument: PolicyDocument; } | undefined>' is not assignable to type 'void | Promise<APIGatewayAuthorizerResult>'.
    Type 'Promise<{ principalId: string; policyDocument: PolicyDocument; } | undefined>' is not assignable to type 'void | Promise<APIGatewayAuthorizerResult>'.
      Type 'Promise<{ principalId: string; policyDocument: PolicyDocument; } | undefined>' is not assignable to type 'Promise<APIGatewayAuthorizerResult>'.
        Type '{ principalId: string; policyDocument: PolicyDocument; } | undefined' is not assignable to type 'APIGatewayAuthorizerResult'.
          Type 'undefined' is not assignable to type 'APIGatewayAuthorizerResult'.

28 export const handler: APIGatewayTokenAuthorizerHandler = Sentry.AWSLambda.wrapHandler(