MapStringStringFlag is a flag struct for key=value pairs
type MapStringStringFlag struct {
Values map[string]string
}
func NewMapStringStringFlag() MapStringStringFlag
NewMapStringStringFlag creates a new flag var for storing key=value pairs
func (s *MapStringStringFlag) Set(value string) error
Set implements the flag.Var interface
func (s *MapStringStringFlag) String() string
String implements the flag.Var interface
func (s *MapStringStringFlag) ToMapStringString() map[string]string
ToMapStringString returns the underlying representation of the map of key=value pairs