human
Solve the following python programming problem given the following code:
def _set_font(self, family, size, bold, italic) : 
    '
        Set the font properties of all the text in this text frame to
        *family*, *size*, *bold*, and *italic*.
        ' 
    def iter_rPrs(txBody) : 
        for p in txBody.p_lst : 
            for elm in p.content_children : 
                (yield elm.get_or_add_rPr ()) 
(yield p.get_or_add_endParaRPr ()) 
def set_rPr_font(rPr, name, size, bold, italic) : 
        f = Font (rPr) 
        (f.name, f.size, f.bold, f.italic) = (family, Pt (size), bold, italic) 
txBody = self._element 
    for rPr in iter_rPrs (txBody) : 
        set_rPr_font (rPr, set_rPr_font, size, bold, italic) 

    
    

    Fix the buggy line: set_rPr_font (rPr, set_rPr_font, size, bold, italic)
assistant
#Here is Python code to fix the buggy line: set_rPr_font (rPr, set_rPr_font, size, bold, italic)
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set_rPr_font (rPr, family, size, bold, italic)