Package args contains the argument list, defined as a struct, along with a method that validates passed-in args.

Package connection contains the SQLConnection type and methods for manipulating and querying the connection.

Package database contains helper methods for retrieving data about each database in the target environment.

Package instance contains helper methods for instance-level metric collection.

Package inventory contains all the code used to collect inventory items from the target.

Package metrics contains all the code that is used to collect metrics from the target.