Parse and enumerate all the fhir elements

I am using the Firely nuget package to parse a Patient FHIR resource from a bundle. The keyValuePair.Value type is object and for complex fhir datatypes contains nested objects. How do I parse and extract all the fhir elements and its values to a csv format?

Is there an easier way to parse and enumerate the elements without having to typecast the resource first and then extract each individual element inside that resource?

string fhirBundle = GetFHIRBundleFromFile();

FhirJsonParser fhirJsonParser = new FhirJsonParser();
Bundle bundle = fhirJsonParser.Parse<Bundle>(fhirBundle);

foreach (var entry in bundle.Entry)
{
    switch (entry.Resource)
    {
        case Patient:
            Patient patient = (Patient)entry.Resource;
            foreach (KeyValuePair<string, object> keyValuePair in patient)
                  Console.WriteLine(keyValuePair.Key + ": " + keyValuePair.Value.ToString());
             
            break;
        default:
            Console.WriteLine("Resource is not of type Patient")   
            break;
    }
}