func (w *WidgetMetadata) GetExpression() string {
	if w == nil || w.Expression == nil {
		return ""
	}
	return *w.Expression
}
func (w *WidgetMetadata) GetExpression() string {
	if w == nil || w.Expression == nil {
		return ""
	}
	return *w.Expression
}
func ( w * WidgetMetadata ) GetExpression ( ) string { if w == nil || w . Expression == nil { return " " } return * w . Expression }
// GetExpression returns the Expression field if non-nil, zero value otherwise.
GetExpression returns the Expression field if non - nil zero value otherwise .