This code comes from an externally managed library, available at
<https://github.com/mozilla/fathom>. Bugs should be reported directly
upstream and integrated back here.
In order to regenerate this file, do the following:
* Run:
$ git clone git@github.com:mozilla/fathom.git && cd fathom/fathom
* Ensure that [this pull request](https://github.com/mozilla/fathom/pull/311)
is either landed or been applied to the latest code you want to bundle.
* Then run:
