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// These constants represent the keyboard keys
const (
	Enter = "Enter"
	Tab   = "Tab"
	F1    = "PF(1)"
	F2    = "PF(2)"
	F3    = "PF(3)"
	F4    = "PF(4)"
	F5    = "PF(5)"
	F6    = "PF(6)"
	F7    = "PF(7)"
	F8    = "PF(8)"
	F9    = "PF(9)"
	F10   = "PF(10)"
	F11   = "PF(11)"
	F12   = "PF(12)"
)

......

//Press press a keyboard key
func (e *Emulator) Press(key string) error {
	if !e.validaKeyboard(key) {
		return fmt.Errorf("invalid key %s", key)
	}
	return e.execCommand(key)
}

//validaKeyboard valid if key passed by parameter if a key valid
func (e *Emulator) validaKeyboard(key string) bool {
	switch key {
	case Tab:
		return true
	case Enter:
		return true
	default:
		return false
	}
}