code: def p_namedblock_empty(self, p):
          'namedblock : BEGIN COLON ID END'
          p[0] = Block((), p[3], lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1)f p_namedblock_empty(self, p):
          'namedblock : BEGIN COLON ID END'
          p[0] = Block((), p[3], lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1))
docs: namedblock : BEGIN COLON ID END