old_contents: 
  exports.get = function getMany(model, params) {
  }
  
  exports.add = function add(model, data) {
  }
  
  exports.update = function update(model, id, data) {
  }
  
  exports.delete = function delete(model, id, params) {
  }
new_contents: 
  function get(model, params, cb) {
  }
  
  function add(model, data, cb) {
  }
  
  function update(model, id, data, cb) {
  }
  
  function del(model, id, params, cb) {
  }
  
  function getNameFromModel(model) {
    return new model().tableName;
  }
  
  exports.get = get;
  exports.add = add;
  exports.update = update;
  exports.delete = del;
  exports.getNameFromModel = getNameFromModel;
subject: Add function to get table name from model