_getExceptionHandlers() {
    // Remark (indexzero): since `logger.transports` returns all of the pipes
    // from the _readableState of the stream we actually get the join of the
    // explicit handlers and the implicit transports with
    // `handleExceptions: true`
    return this.logger.transports.filter(wrap => {
      const transport = wrap.transport || wrap;
      return transport.handleExceptions;
    });
  }
Returns the list of transports and exceptionHandlers for this instance.
@returns {Array} - List of transports and exceptionHandlers for this
instance.
@private