human
Solve the following python programming problem given the following code:
def _latex(self, printer, * args) : 
    if (_combined_printing and (all ([isinstance (arg, Ket) for arg in self.args]) or all ([isinstance (arg, Bra) for arg in self.args]))) : 
        def _label_wrap(label, nlabels) : 
            return (label if (nlabels == 1) else ('\\left\\{%s\\right\\}' % label)) 
s = ', '.join ([_label_wrap (arg._print_label_latex (printer, * args), len (arg.args)) for arg in self.args]) 
        return ('{%s%s%s}' % (self.args [0].lbracket_latex, s, self.args [0].rbracket_latex)) 
length = len (self.args) 
    s = '' 
    for i in range (length) : 
        if isinstance (self.args [i], (Add, Mul)) : 
            s = (s + '\\left(') 
s = (((s + '{') + printer._print (self.args [i], * printer)) + '}') 
        if isinstance (self.args [i], (Add, Mul)) : 
            s = (s + '\\right)') 
if (i != (length - 1)) : 
            s = (s + '\\otimes ') 
return s 

    
    

    Fix the buggy line: s = (((s + '{') + printer._print (self.args [i], * printer)) + '}')
assistant
#Here is Python program to fix the buggy line: s = (((s + '{') + printer.

s = (((s + '{') + printer._print (self.args [i], * args)) + '}')