code: function _visitSpecializations(entities, visitedEntities) {
    for (var entityName in entities) {
      if (!visitedEntities.hasOwnProperty(entityName)) {
        visitedEntities[entityName] = entities[entityName];
  
        _visitSpecializations(
          entities[entityName].directSpecializations,
          visitedEntities
        );
      }
    }
  }
docs: Visits all specializations of a list of entities.
  @name module:back4app-entity/models.Entity~_visitSpecializations
  @function
  @param entities The entities whose specializations shall be visited.
  @param visitedEntities The list of visited entities.
  @private
  @example
  var specializations = [];
  _visitSpecializations(MyEntity.directSpecializations, specializations);
  console.log(specializations); // Logs all specializations of MyEntity