This module only implemented the iam-servercertdel command. I would recommend using the official AWS CLI tools, available here:
https://www.npmjs.com/package/aws-sdk
The purpose of these tools are to provide an alternative to the Java command line tools, and use the aws-sdk node project.
These tools are at a very early stage and only one command is supported.
npm install -g aws-cli
Edit the config.json file, to include your AWS keys
All commands prefixed by aws, e.g.:
aws iam-servercertdel -s CERTIFICATE_NAME
aws iam-servercertdel -s CERTIFICATE_NAME