kubernetes/staging/src/k8s.io/component-base/cli/globalflag/globalflags.go

// AddGlobalFlags explicitly registers flags that libraries (klog, verflag, etc.) register
// against the global flagsets from "flag" and "k8s.io/klog/v2".
// We do this in order to prevent unwanted flags from leaking into the component's flagset.
//
// k8s.io/component-base/logs.SkipLoggingConfigurationFlags must be used as
// option when the program also uses a LoggingConfiguration struct for
// configuring logging. Then only flags not covered by that get added.
func AddGlobalFlags(fs *pflag.FlagSet, name string, opts ...logs.Option) { … }

// Register adds a flag to local that targets the Value associated with the Flag named globalName in flag.CommandLine.
func Register(local *pflag.FlagSet, globalName string) { … }