lesscpy/lessc/parser.py
def p_font_face_open(self, p):
        """ block_open                : css_font_face t_ws brace_open
        """
        p[0] = Identifier([p[1], p[2]]).parse(self.scope)
def p_font_face_open(self, p):
        """ block_open                : css_font_face t_ws brace_open
        """
        p[0] = Identifier([p[1], p[2]]).parse(self.scope)
block_open                : css_font_face t_ws brace_open