func (g *GraphDefinitionMarker) GetVal() json.Number {
	if g == nil || g.Val == nil {
		return ""
	}
	return *g.Val
}
func (g *GraphDefinitionMarker) GetVal() json.Number {
	if g == nil || g.Val == nil {
		return ""
	}
	return *g.Val
}
// GetVal returns the Val field if non-nil, zero value otherwise.