code: async function handleRequest(url, options, callback) {
    // normalize options to play nice with superagent requests
    options = normalizeOptions(options)
  
    return callback(url, options)
  }
docs: Handle Request
  
  A generic request handler used to intercept
  requests before they request out. Ensures
  access_token isn't expired sets it as the
  Authorization header.
  
  Available options
  - headers: An object with keys set to the header name
  and values set to the corresponding header value.
  - query: An object with keys set to url query parameters
  and values set to the corresponding query values.
  - body: A http request body.
  - auth: A boolean determining whether the access token
  should be supplied with the request.
  - snapshot: A boolean that will add a 'snapshots' url
  param to scitran requests.