How to use the @accordproject/concerto-core.ModelUtil function in @accordproject/concerto-core

* You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict';

const ModelFile = require('@accordproject/concerto-core').ModelFile;
const ModelManager = require('@accordproject/concerto-core').ModelManager;
const ModelUtil = require('@accordproject/concerto-core').ModelUtil;
const ClassDeclaration = require('@accordproject/concerto-core').ClassDeclaration;
const EnumDeclaration = require('@accordproject/concerto-core').EnumDeclaration;

const Field = require('@accordproject/concerto-core').Field;
const RelationshipDeclaration = require('@accordproject/concerto-core').RelationshipDeclaration;
const EnumValueDeclaration = require('@accordproject/concerto-core').EnumValueDeclaration;

/**
 * Convert the contents of a ModelManager
 * to an XML Schema.
 * Set a fileWriter property (instance of FileWriter) on the parameters
 * object to control where the generated code is written to disk.
 *
 * @private
 * @class
 * @memberof module:concerto-tools

* you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict';

const ModelManager = require('@accordproject/concerto-core').ModelManager;
const ModelUtil = require('@accordproject/concerto-core').ModelUtil;
const ModelFile = require('@accordproject/concerto-core').ModelFile;
const ClassDeclaration = require('@accordproject/concerto-core').ClassDeclaration;
const Field = require('@accordproject/concerto-core').Field;
const RelationshipDeclaration = require('@accordproject/concerto-core').RelationshipDeclaration;
const EnumDeclaration = require('@accordproject/concerto-core').EnumDeclaration;
const EnumValueDeclaration = require('@accordproject/concerto-core').EnumValueDeclaration;
const util = require('util');

/**
 * Convert the contents of a ModelManager to TypeScript code.
 * All generated code is placed into the 'main' package. Set a
 * fileWriter property (instance of FileWriter) on the parameters
 * object to control where the generated code is written to disk.
 *
 * @private
 * @class

*/

'use strict';

const AssetDeclaration = require('@accordproject/concerto-core').AssetDeclaration;
const ClassDeclaration = require('@accordproject/concerto-core').ClassDeclaration;
const EnumDeclaration = require('@accordproject/concerto-core').EnumDeclaration;
const ConceptDeclaration = require('@accordproject/concerto-core').ConceptDeclaration;
const EnumValueDeclaration = require('@accordproject/concerto-core').EnumValueDeclaration;
const Field = require('@accordproject/concerto-core').Field;
const ModelFile = require('@accordproject/concerto-core').ModelFile;
const ModelManager = require('@accordproject/concerto-core').ModelManager;
const RelationshipDeclaration = require('@accordproject/concerto-core').RelationshipDeclaration;
const TransactionDeclaration = require('@accordproject/concerto-core').TransactionDeclaration;
const util = require('util');
const ModelUtil = require('@accordproject/concerto-core').ModelUtil;
/**
 * Convert the contents of a ModelManager to Go Lang code.
 * All generated code is placed into the 'main' package. Set a
 * fileWriter property (instance of FileWriter) on the parameters
 * object to control where the generated code is written to disk.
 *
 * @private
 * @class
 * @memberof module:concerto-tools
 */
class GoLangVisitor {
    /**
     * Visitor design pattern
     * @param {Object} thing - the object being visited
     * @param {Object} parameters  - the parameter
     * @return {Object} the result of visiting or null

* You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict';

const EmptyPlugin = require('./emptyplugin');
const ModelManager = require('@accordproject/concerto-core').ModelManager;
const ModelUtil = require('@accordproject/concerto-core').ModelUtil;
const ModelFile = require('@accordproject/concerto-core').ModelFile;
const ClassDeclaration = require('@accordproject/concerto-core').ClassDeclaration;
const Field = require('@accordproject/concerto-core').Field;
const RelationshipDeclaration = require('@accordproject/concerto-core').RelationshipDeclaration;
const EnumDeclaration = require('@accordproject/concerto-core').EnumDeclaration;
const EnumValueDeclaration = require('@accordproject/concerto-core').EnumValueDeclaration;
const util = require('util');

/**
 * Convert the contents of a ModelManager to Java code.
 * Set a fileWriter property (instance of FileWriter) on the parameters
 * object to control where the generated code is written to disk.
 *
 * @private
 * @class
 * @memberof module:concerto-tools