human
Solve the following python programming problem given the following code:
def lex_document(self, cli, document) : 
    lines = list (split_lines (self._get_tokens (cli, cli.text))) 
    def get_line(lineno) : 
        try : 
            return lines [lineno] 
except IndexError : 
            return [] 
return get_line 

    
    

    Fix the buggy line: lines = list (split_lines (self._get_tokens (cli, cli.text)))
assistant
#Here is Python program to fix the buggy line: lines = list (split_lines (self.

lines = list (split_lines (self._get_tokens (cli, document.text)))