https://learn.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.mvc.razor.compilation.relativefileinfo?view=aspnetcore-1.1&viewFallbackFrom=aspnetcore-10.0
RelativeFileInfo Class (Microsoft.AspNetCore.Mvc.Razor.Compilation) | Microsoft Learn
A container type that represents IFileInfo along with the application base relative path for a file in the file system.
classmicrosoftaspnetcoremvcrazor