You just need to reference it in your project using this command line :
Install-Package OpenDataInfrabel -Version 0.3.0
IInfrastructure infrastructure = new Infrastructure();
var result = await infrastructure.GetKilometersMarkersNetwork();
ISecurity security = new Security();
var result = await security.GetAccidentsCSI();
ITrafficManagement trafficManagement = new TrafficManagement();
var result = await trafficManagement.GetMobipulseData();
IHumanRessources humanRessources = new HumanRessources();
var result = await humanRessources.GetDistributionStaffByGender();
IClientsProducts clientsProducts = new ClientsProducts();
var result = await clientsProducts.GetEvolutionNetTonnageYear();