// Define a flag with a default value cmd.Flags().String("name", "world", "name to greet") // Retrieve a flag's value name, _ := cmd.Flags().GetString("name") // Define a boolean flag cmd.Flags().Bool("debug", false, "enable debug mode") // Retrieve a boolean flag's value debug, _ := cmd.Flags().GetBool("debug")In these examples, the `Flags()` function is used to define and retrieve command flags. The first argument is the name of the flag, the second is its default value, and the third is a brief description of what the flag does. The `GetString()` and `GetBool()` functions are used to retrieve the values of string and boolean flags respectively. Overall, the `github.com/spf13/cobra` package is a valuable addition to any Go developer's toolbox, enabling them to easily create powerful and flexible command-line interfaces for their applications.