func (f *Float64Flag) GetValue() string {
	return fmt.Sprintf("%f", f.Value)
}
GetValue returns the flags value as string representation and an empty
string if the flag takes no value at all.
package cli
import (
	"flag"
	"fmt"
	"strconv"
)
type Float64Flag struct {
	Name        string
	Aliases     []string
	Usage       string
	EnvVars     []string
	FilePath    string
	Required    bool
	Hidden      bool
	Value       float64
	DefaultText string
	Destination *float64
	HasBeenSet  bool
}
func (f *Float64Flag) IsSet() bool {
	return f.HasBeenSet
}
func (f *Float64Flag) String() string {
	return FlagStringer(f)
}
func (f *Float64Flag) Names() []string {
	return flagNames(f.Name, f.Aliases)
}
func (f *Float64Flag) IsRequired() bool {
	return f.Required
}
func (f *Float64Flag) TakesValue() bool {
	return true
}
func (f *Float64Flag) GetUsage() string {
	return f.Usage
}