curl -i -X PUT "https://api.box.com/2.0/metadata_templates/enterprise/securityClassification-6VMVochwUWo/schema" \
     -H "authorization: Bearer <ACCESS_TOKEN>" \
     -H "content-type: application/json-patch+json" \
     -d '[{
       "op": "addEnumOption",
       "fieldKey": "Box__Security__Classification__Key",
       "data": {
         "key": "Sensitive",
         "staticConfig":{
          "classification": {
            "classificationDefinition": "Sensitive information that must not be shared.",
            "colorID": 4
            }
         }
       }
     }]'

await client.classifications.addClassification([
  new AddClassificationRequestBody({
    data: {
      key: getUuid(),
      staticConfig: {
        classification: {
          colorId: 4,
          classificationDefinition: 'Other description',
        } satisfies AddClassificationRequestBodyDataStaticConfigClassificationField,
      } satisfies AddClassificationRequestBodyDataStaticConfigField,
    } satisfies AddClassificationRequestBodyDataField,
  }),
]);

client.classifications.add_classification(
    [
        AddClassificationRequestBody(
            data=AddClassificationRequestBodyDataField(
                key=get_uuid(),
                static_config=AddClassificationRequestBodyDataStaticConfigField(
                    classification=AddClassificationRequestBodyDataStaticConfigClassificationField(
                        color_id=4, classification_definition="Other description"
                    )
                ),
            )
        )
    ]
)

await client.Classifications.AddClassificationAsync(requestBody: Array.AsReadOnly(new [] {new AddClassificationRequestBody(data: new AddClassificationRequestBodyDataField(key: Utils.GetUUID()) { StaticConfig = new AddClassificationRequestBodyDataStaticConfigField() { Classification = new AddClassificationRequestBodyDataStaticConfigClassificationField() { ColorId = 4, ClassificationDefinition = "Other description" } } })}));

List<MetadataTemplate.FieldOperation> updates = new ArrayList<MetadataTemplate.FieldOperation>();

String update = "{\n  op: \"addEnumOption\",\n  fieldKey: \"Box__Security__Classification__Key\",\n  data: {\n    key: \"Sensitive\"\n }\n}";

updates.add(new MetadataTemplate.FieldOperation(addCategoryFieldJSON));

MetadataTemplate.updateMetadataTemplate(api, Metadata.ENTERPRISE_METADATA_SCOPE, Metadata.CLASSIFICATION_TEMPLATE_KEY, updates);

template = client.metadata_template('enterprise', 'securityClassification-6VMVochwUWo')
new_updates = template.start_update()
new_updates.add_enum_option('Box__Security__Classification__Key', 'Sensitive')
updated_template = template.update_info(updates=new_updates)

var update = new BoxMetadataTemplateUpdate
{
    Op = MetadataTemplateUpdateOp.addEnumOption,
    FieldKey = "Box_Security_Classification_Key",
    Data = new
    {
        key = "Sensitive"
    }
};

var template = await client.MetadataManager
    .UpdateMetadataTemplate(new List<BoxMetadataTemplateUpdate>() { update }, "enterprise", "securityClassification-6VMVochwUWo");

var operations = [{
  op: "addEnumOption",
  fieldKey: "Box__Security__Classification__Key",
  data: {
    key: "Sensitive",
    classification: {
      classificationDefinition: "Sensitive information that must not be shared.",
      colorID: 4
    }
 }
}];
client.metadata.updateTemplate('enterprise', 'securityClassification-6VMVochwUWo', operations)
	.then(template => {
		// the updated classification template
	});