Please refer to our public withfig/autocomplete repo for more details.
If you have fig installed, simply run fig update
Run the following:
# Make the autocomplete folder where Fig looks for completion specs. Cd into it
mkdir -p ~/.fig/autocomplete; cd $_
# Download all the files in the specs folder of this repo
curl https://codeload.github.com/withfig/autocomplete/tar.gz/master | \
tar -xz --strip=2 autocomplete-master/specs