Reads expenses recorded in Splitwise and translates them into transaction splits in Monarch Money. Not deployed anywhere, so you'll have to generate your own Splitwise app and provide the key/secret/API key in an .env file with the format shown in .env.template. Unfortunately, Monarch doesn't support app/token authentication at the moment, so you'll also need to provide your email/username in the same .env file.
For whatever reason, after a transaction split Monarch creates separate objects with separate IDs, and the original transaction ID will no longer appear in the response from client.get_transactions(). However, with the split transaction ID, you can call client.get_transaction_details(split_id), find the original transaction ID, then call client.get_transaction_splits(original_id) to get the relevant information.