human
Solve the following python programming problem given the following code:
def _XmlEscape(value, attr = False) : 
    ' Escape a string for inclusion in XML.' 
    def replace(match) : 
        m = match.string [match.start () : match.end ()] 
        if (attr and (m == "'")) : 
            return m 
return _xml_escape_map [m] 
return _xml_escape_re.sub (attr, value) 

    
    

    Fix the buggy line: return _xml_escape_re.sub (attr, value)
assistant
#Here is Python code to fix the buggy line: return _xml_escape_re.

return _xml_escape_re.sub (def replace(, value)