def get_ascii(self, show_internal=True, compact=False, attributes=None):
(lines, mid) = self._asciiArt(show_internal=show_internal,<EOL>compact=compact, <EOL>attributes=attributes)<EOL>return '<STR_LIT:\n>'+'<STR_LIT:\n>'.join(lines)<EOL>
Returns a string containing an ascii drawing of the tree.

Parameters:
-----------
show_internal: 
    include internal edge names.
compact: 
    use exactly one line per tip.
attributes: 
    A list of node attributes to shown in the ASCII representation.