System.Xml.Serialization.SoapReflectionImporter.GetTypeMapping C# (CSharp) Method

        TypeMapping GetTypeMapping(string typeName, string ns, TypeDesc typeDesc) {
            TypeMapping mapping = (TypeMapping)types[typeName, ns];
            if (mapping == null) return null;
            if (mapping.TypeDesc != typeDesc) 
                throw new InvalidOperationException(Res.GetString(Res.XmlTypesDuplicate, typeDesc.FullName, mapping.TypeDesc.FullName, typeName, ns));
            return mapping;
        }