PortablePrism.Portable by Andrii Chebukin

<PackageReference Include="PortablePrism.Portable" Version="1.0.1" />

 ILoggerFacade

public interface ILoggerFacade
Defines a simple logger fa├žade to be used by the Composite Application Library.
void Log(string message, Category category, Priority priority)

Write a new log entry with the specified category and priority.