public function with($params = null)
	{
		if ( ! is_array($params))
		{
			$params = func_get_args();
		}
		$this->with = $params;
		return $this;
	}
public function with($params = null)
	{
		if ( ! is_array($params))
		{
			$params = func_get_args();
		}
		$this->with = $params;
		return $this;
	}
public function with ( $ params = null ) { if ( ! is_array ( $ params ) ) { $ params = func_get_args ( ) ; } $ this -> with = $ params ; return $ this ; }
Set eager load fields

@param $params
@return ModelItem
Set eager load fields