import "github.com/cloudfoundry/cli/cf/commandregistry" func init() { commandregistry.Register(CommandFactoryFunc(NewMyCommand)) } type MyCommand struct {} func NewMyCommand() commandregistry.Command { return &MyCommand{} } func (c *MyCommand) MetaData() commandregistry.CommandMetadata { return commandregistry.CommandMetadata{ Name: "my-command", Description: "This is my command", } } func (c *MyCommand) Run(ctx context.Context, args []string) error { // Do some work return nil }In this example, a new command called "my-command" is registered with the CLI. When the user types `cf my-command` in the terminal, the `Run` function of the `MyCommand` struct will be called. Overall, the `github.com.cloudfoundry.cli.cf.commandregistry` package library provides a powerful and extensible framework for building CLI tools that interact with Cloud Foundry services.