The base URL of your instance of ERS.
The release channel you want to send artifacts to, normally something like "stable", "beta" or "alpha".
If left unspecified we will try to infer the channel from your version field in your package.json.
The "flavor" of the binary that you want to release to. This is useful if you want to provide multiple versions of the same application version (e.g. full and lite) to end users.
The password you use to sign in to ERS
The username you use to sign in to ERS