code: def p_initial(self, p):
          'initial : INITIAL initial_statement'
          p[0] = Initial(p[2], lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1)f p_initial(self, p):
          'initial : INITIAL initial_statement'
          p[0] = Initial(p[2], lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1))
docs: initial : INITIAL initial_statement