package main import ( "flag" "fmt" ) func main() { fs := flag.NewFlagSet("example", flag.ExitOnError) fs.Int("number", 0, "an integer value") fs.String("name", "", "a string value") fs.VisitAll(func(f *flag.Flag) { fmt.Println(f.Name, f.Usage, f.Value) }) }This code creates a FlagSet object, adds two flags (number and name), and then loops through all of the flags using VisitAll. For each flag, it prints the flag name, usage, and value. This code demonstrates how FlagSet VisitAll can be used to display helpful information about the available command line flags. Package library: flag.