Porting ServiceDescription code to .net Core

I have some .Net 4.8 C# code that reads in a WSDL from a SOAP Web service, and dynamically generates a UI for invoking methods provided by the service. I use the System.Web.Services classes such as ServiceDescription, MetadataSection, ServiceContractGenerator to do this. The code looks something like this:

System.Web.Services.Description.ServiceDescription serviceDescription
 = System.Web.Services.Description.ServiceDescription.Read(new XmlTextReader(new StringReader(m_ServiceDescriptor)));
MetadataSection
 section =
MetadataSection.CreateFromServiceDescription(serviceDescription);
MetadataSet metaDocs = new MetadataSet(new MetadataSection[] {section});
WsdlImporter importer = new WsdlImporter(metaDocs);
ServiceContractGenerator serviceContractGenerator = new
ServiceContractGenerator(); ServiceEndpointCollection
serviceEndpointCollection = importer.ImportAllEndpoints();

I want to port this code to .Net Core 3.0, but cannot work out how to move the code that uses the System.Web.Services classes. As far as I can work out, System.Web.Services classes are not supported in .Net Core, but I can't find functional equivalent classes in the Microsoft.AspNet packages. So my questions are:

1. Is there some way to import the System.Web.Services classes into a .Net Core 3.0 application?
2. If not, where do I find the classes that do the same thing in .Net Core 3.0? Are they somewhere in the Microsoft.AspNet packages?