code: function getMongoModelForEntity(entity) {
  	
  	const entityName = entity.setEntityName();
  	
  	if(!models.hasOwnProperty(entity.setEntityName()))
  	{
  		models[entityName] = convertPAIEntityToMongoSchema(entity);
  		
  		PAILogger.info("MongoDB Model just created: " + entityName);
  	}
  	
  	return models[entityName];
  }
docs: Get MongoDB Model
  @param entity
  @return {Model}