This paragraph summarizes the text by describing how to build a command line application using Symfony's Console Component to view Twilio account usage. The process involves creating a project directory structure, adding required dependencies, retrieving Twilio credentials, and defining two classes: `TwilioUsage` and `TwilioUsageCommand`. The `TwilioUsage` class retrieves usage records from the Twilio API, while the `TwilioUsageCommand` class creates a custom command to display these records in a tabular format. The application is then run using an `application.php` file that connects the command with user input and allows it to write output to the terminal. The final step involves adding a PSR-4 namespace to autoload the classes when required.