def pack(self, **kw):
        """
        Pack a widget in the parent widget.
        
        :param after: pack it after you have packed widget
        :type after: widget
        :param anchor: position anchor according to given direction 
                        ("n", "s", "e", "w" or combinations)
        :type anchor: str
        :param before: pack it before you will pack widget
        :type before: widget
        :param expand: expand widget if parent size grows
        :type expand: bool
        :param fill: "none" or "x" or "y" or "both": fill widget if widget grows
        :type fill: str
        :param in\_: widget to use as container
        :type in\_: widget
        :param ipadx: add internal padding in x direction
        :type ipadx: int
        :param ipady: add internal padding in y direction
        :type ipady: int
        :param padx: add padding in x direction
        :type padx: int
        :param pady: add padding in y irection
        :type pady: int
        :param side: "top" (default), "bottom", "left" or "right": where to add this widget
        :type side: str
        """
        ttk.Scrollbar.pack(self, **kw)
        try:
            self._pack_kw = self.pack_info()
        except TypeError:
            # bug in some tkinter versions
            self._pack_kw = self._get_info("pack")
        self._layout = 'pack'
Pack a widget in the parent widget.
        
        :param after: pack it after you have packed widget
        :type after: widget
        :param anchor: position anchor according to given direction 
                        ("n", "s", "e", "w" or combinations)
        :type anchor: str
        :param before: pack it before you will pack widget
        :type before: widget
        :param expand: expand widget if parent size grows
        :type expand: bool
        :param fill: "none" or "x" or "y" or "both": fill widget if widget grows
        :type fill: str
        :param in\_: widget to use as container
        :type in\_: widget
        :param ipadx: add internal padding in x direction
        :type ipadx: int
        :param ipady: add internal padding in y direction
        :type ipady: int
        :param padx: add padding in x direction
        :type padx: int
        :param pady: add padding in y irection
        :type pady: int
        :param side: "top" (default), "bottom", "left" or "right": where to add this widget
        :type side: str