How to instrument apollo server 0.2 with tracer

apollo-server-tracer.js

import express from 'express';
import { Tracer } from 'graphql-tracer';
import { apolloExpress } from 'apollo-server';
import Schema from './schema';

const app = express();

const tracer = new Tracer({ TRACER_APP_KEY: '...'});
addTracingToResolvers(Schema);

const optionsFunc = req => {
  return {
    schema: Schema,
    context: {},
    formatParams: params => {
      const logger = tracer.newLoggerInstance();
      logger.log('request.info', {
        headers: req.headers,
        baseUrl: req.baseUrl,
        originalUrl: req.originalUrl,
        method: req.method,
        httpVersion: req.httpVersion,
        remoteAddr: req.connection.remoteAddress,
      });
      params['logFunction'] = logger.log;
      params['context']['tracer'] = logger;
      return params;
    },
    formatResponse: (response, { context }) => {
      context.tracer.submit();
      return response;
    }
  };
}

app.use('/graphql', apolloExpress(optionsFunc));

app.listen(3000);

addTracingToResolvers should also be imported from graphql-tracer on line 2 right?