public string Report()
{
var report = new StringBuilder();
report.AppendLine($"{Filename}");
if (HasErrors)
{
Errors.ForEach(e => report.AppendLine($"Error: {e}"));
}
if (HasWarnings)
{
Warnings.ForEach(w => report.AppendLine($"Warning: {w}"));
}
report.AppendLine(SuccessDescription());
return(report.ToString());
}