Output from draw_ascii_tree: 
                       |                       
                    <Root>                     
       /-----------------------\               
       |                       |               
      <Â>                     <ß>              
 /---+-----\     /---+---+---+---------\       
 |   |     |     |   |   |   |         |       
<â> <ä>   <é>   <®> <£> <€> <√>      <×xX>     
 |         |     |               /---+---+---\ 
<É>       <Ñ>   <©>              |   |   |   | 
           |                    <í> <ú> <«> <»>
          <ñ>                                  
           |                                   
          <Ô>                                  
         /---\                                 
         |   |                                 
        <ô> <ô>                                

Output from tree2string(): 
Root. Attributes: {}
    |--- Â. Attributes: {# => "ÂÂ"}
    |    |--- â. Attributes: {# => "ââ"}
    |    |    |--- É. Attributes: {# => "ÉÉ"}
    |    |--- ä. Attributes: {# => "ää"}
    |    |--- é. Attributes: {# => "éé"}
    |         |--- Ñ. Attributes: {# => "ÑÑ"}
    |              |--- ñ. Attributes: {# => "ññ"}
    |                   |--- Ô. Attributes: {# => "ÔÔ"}
    |                        |--- ô. Attributes: {# => "ôô"}
    |                        |--- ô. Attributes: {# => "ôô"}
    |--- ß. Attributes: {# => "ßß"}
         |--- ®. Attributes: {# => "®®"}
         |    |--- ©. Attributes: {# => "©©"}
         |--- £. Attributes: {# => "££"}
         |--- €. Attributes: {# => "€€"}
         |--- √. Attributes: {# => "√√"}
         |--- ×xX. Attributes: {# => "×xX×xX"}
              |--- í. Attributes: {# => "íí"}
              |--- ú. Attributes: {# => "úú"}
              |--- «. Attributes: {# => "««"}
              |--- ». Attributes: {# => "»»"}

Output from decode_lol(tree_to_lol): 
'É'
'â'
'ä'
'ô'
'ô'
'Ô'
'ñ'
'Ñ'
'é'
'Â'
'©'
'®'
'£'
'€'
'√'
'í'
'ú'
'«'
'»'
'×xX'
'ß'
'Root'

Output from tree_to_lol_notation({multiline => 0}): 
[[[['É'],'â'],['ä'],[[[[['ô'],['ô'],'Ô'],'ñ'],'Ñ'],'é'],'Â'],[[['©'],'®'],['£'],['€'],['√'],[['í'],['ú'],['«'],['»'],'×xX'],'ß'],'Root'],

Output from tree_to_lol_notation({multiline => 1}): 
[
  [
    [
      [
        'É'
      ],
      'â'
    ],
    [
      'ä'
    ],
    [
      [
        [
          [
            [
              'ô'
            ],
            [
              'ô'
            ],
            'Ô'
          ],
          'ñ'
        ],
        'Ñ'
      ],
      'é'
    ],
    'Â'
  ],
  [
    [
      [
        '©'
      ],
      '®'
    ],
    [
      '£'
    ],
    [
      '€'
    ],
    [
      '√'
    ],
    [
      [
        'í'
      ],
      [
        'ú'
      ],
      [
        '«'
      ],
      [
        '»'
      ],
      '×xX'
    ],
    'ß'
  ],
  'Root'
],


Output from decode_lol(tree_to_simple_lol): 
'É'
'ä'
'ô'
'ô'
'©'
'£'
'€'
'√'
'í'
'ú'
'«'
'»'

Output from tree_to_simple_lol_notation({multiline => 0}): 
[[['É',], 'ä',[[[['ô','ô',], ], ], ], ], [['©',], '£','€','√',['í','ú','«','»',], ], ], 

Output from tree_to_simple_lol_notation({multiline => 1}): 
[
  [
    [
      'É',
    ], 
    'ä',
    [
      [
        [
          [
            'ô',
            'ô',
          ], 
        ], 
      ], 
    ], 
  ], 
  [
    [
      '©',
    ], 
    '£',
    '€',
    '√',
    [
      'í',
      'ú',
      '«',
      '»',
    ], 
  ], 
],