code: def p_integernamelist(self, p):
          'integernamelist : integernamelist COMMA integername'
          p[0] = p[1] + (p[3],)
          p.set_lineno(0, p.lineno(1)f p_integernamelist(self, p):
          'integernamelist : integernamelist COMMA integername'
          p[0] = p[1] + (p[3],)
          p.set_lineno(0, p.lineno(1))
docs: integernamelist : integernamelist COMMA integername