This repository contains a new Unity3d project, where fastlane was setup for Android and iOS by following the steps described in this readme.
There now exists a Fastfile for Android and a Fastfile for iOS. Note that these Fastfiles contain the lane custom_lane, which shows an example usage of the fastlane plugin unity_exporter.
To execute Android's custom_lane navigate to fastlane-build-exporter/Android in your terminal and execute fastlane custom_lane.
To execute iOS' custom_lane navigate to fastlane-build-exporter/iOS in your terminal and execute fastlane custom_lane.