bool ILanguangeExporter.AppendValueSetCodeConcept(
            ref StringBuilder sb,
            string sanitizedValueSetName,
            string sanitizedCodeName,
            fhir.CodeSystemConcept concept,
            string systemUrl
            )
        {
            string comment;

            // **** start with a comment ****

            if (!string.IsNullOrEmpty(concept.Definition))
            {
                comment = FhirTypeManager.SanitizeComment(concept.Definition, _lineComment, _indentChar, 2);
            }
            else if (!string.IsNullOrEmpty(concept.Display))
            {
                comment = FhirTypeManager.SanitizeComment(concept.Display, _lineComment, _indentChar, 2);
            }
            else
            {
                comment = $"Value for '{concept.Code}'</summary>\n";
            }

            // **** coding is exported inline (before internal and external interfaces) ****

            sb.Append($"const {sanitizedValueSetName}_{sanitizedCodeName}: Coding = {{\n");
            sb.Append($"\t\tcode: \"{concept.Code}\",\n");
            if (!string.IsNullOrEmpty(concept.Display))
            {
                sb.Append($"\t\tdisplay: \"{concept.Display.Replace("\"", "\\\"")}\",\n");
            }
            sb.Append($"\t\tsystem: \"{systemUrl}\"\n");
            sb.Append($"\t}};\n");

            // **** add this code to our interface ****

            //_valueSetInterfaceSB.Append($"\t/**\n\t * {comment}\n\t */\n");
            //_valueSetInterfaceSB.Append($"\t{sanitizedCodeName}: Coding,\n");

            // **** add this code to our export ****

            _valueSetExportSB.Append($"\t/**\n\t * {comment}\n\t */\n");
            _valueSetExportSB.Append($"\t{sanitizedCodeName}: {sanitizedValueSetName}_{sanitizedCodeName},\n");

            return(true);
        }
        bool ILanguangeExporter.AppendValueSetCodeConcept(
            ref StringBuilder sb,
            string sanitizedValueSetName,
            string sanitizedCodeName,
            fhir.CodeSystemConcept concept,
            string systemUrl
            )
        {
            // **** start with a comment ****

            if (!string.IsNullOrEmpty(concept.Definition))
            {
                sb.Append($"\t\t///<summary>{FhirTypeManager.SanitizeComment(concept.Definition, _lineComment, _indentChar, 2)}</summary>\n");
            }
            else if (!string.IsNullOrEmpty(concept.Display))
            {
                sb.Append($"\t\t///<summary>{FhirTypeManager.SanitizeComment(concept.Display, _lineComment, _indentChar, 2)}</summary>\n");
            }
            else
            {
                sb.Append($"\t\t///<summary>Value for '{concept.Code}'</summary>\n");
            }

            // **** start our coding ****

            sb.Append($"\t\tpublic static readonly Coding {sanitizedCodeName} = new Coding\n\t\t{{\n");
            sb.Append($"\t\t\tCode = \"{concept.Code}\",\n");
            if (!string.IsNullOrEmpty(concept.Display))
            {
                sb.Append($"\t\t\tDisplay = \"{concept.Display.Replace("\"", "\\\"")}\",\n");
            }
            sb.Append($"\t\t\tSystem = \"{systemUrl}\"\n");
            sb.Append($"\t\t}};\n");

            return(true);
        }