What are the main API commands available?

The main API commands include:

• GET /bundles - Retrieve a list of available data bundles.
• GET /countries - Get a list of supported countries.
• POST /line/{ICCID}/refill - Refill a specific eSIM line.
• GET /account_balance - Check the account balance.
• GET /network_providers - Retrieve a list of network providers.
• GET /regions - Get a list of supported regions.
• POST /product_types - Add or manage product types.