human
Solve the following python programming problem given the following code:
def make_character_level_from_text(text) : 
    ' Create mapping and inverse mappings for text -> one_hot_char ' 
    all_chars = reduce ((lambda x, y : (set (x) | set (y))), text, set ()) 
    mapper = { k : (k + 2) for (n, k) in enumerate (list (all_chars)) } 
    mapper ['EOS'] = 1 
    mapper ['UNK'] = 0 
    inverse_mapper = { v : k for (k, v) in mapper.items () } 
    def mapper_func(text_line) : 
        return ([mapper [c] for c in text_line] + [mapper ['EOS']]) 
def inverse_mapper_func(symbol_line) : 
        return ''.join ([inverse_mapper [s] for s in symbol_line if (s != mapper ['EOS'])]) 
cleaned = [mapper_func (t) for t in text if (t != '')] 
    return (cleaned, mapper_func, inverse_mapper_func, mapper) 

    
    

    Fix the buggy line: mapper = { k : (k + 2) for (n, k) in enumerate (list (all_chars)) }
assistant
#Here is Python code to fix the buggy line: mapper = { k : (k + 2) for (n, k) in enumerate (list (all_chars)) }
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mapper = { k : (n + 2) for (n, k) in enumerate (list (all_chars)) }