human
Solve the following python programming problem given the following code:
def _split_kwds(self, tlist) : 
    split_words = ('FROM', 'STRAIGHT_JOIN$', 'JOIN$', 'AND', 'OR', 'GROUP', 'ORDER', 'UNION', 'VALUES', 'SET', 'BETWEEN', 'EXCEPT', 'HAVING') 
    def _next_token(i) : 
        t = tlist.token_next_match (i, T.Keyword, split_words, regex = True) 
        if (t and (t.value.upper () == 'BETWEEN')) : 
            t = _next_token ((tlist.token_index (t) + 1)) 
            if (t and (t.value.upper () == 'AND')) : 
                t = _next_token ((tlist.token_index (t) + 1)) 
return t 
idx = 0 
    token = _next_token (idx) 
    added = set () 
    while token : 
        prev = tlist.token_prev (tlist.token_index (token), False) 
        offset = 1 
        if (prev and prev.is_whitespace () and (prev not in added)) : 
            tlist.tokens.pop (tlist.token_index (prev)) 
            offset += 1 
uprev = u (prev) 
        if (prev and (uprev.endswith ('
') or uprev.endswith ('\r'))) : 
            nl = tlist.token_next (token) 
else : 
            nl = self.nl () 
            added.add (nl) 
            tlist.insert_before (split_words, nl) 
            offset += 1 
token = _next_token ((tlist.token_index (nl) + offset)) 

    
    

    Fix the buggy line: tlist.insert_before (split_words, nl)
assistant
#Here is Python program to fix the buggy line: tlist.

tlist.insert_before (token, nl)