docs: function handleFatalError(fatalError, batch, context) {
    const functionName = tracking.getInvokedFunctionNameWithAliasOrVersion(context);
  
    context.warn(`Disabling event source mapping for function (${functionName}) in response to: `, fatalError);
  
    const rethrowCause = () => {
      throw fatalError;// re-throw the original error
    };
  
    return disableSourceStreamEventSourceMapping(batch, context).then(rethrowCause, rethrowCause);
  }