def p_action_let_eqns_lcb_action_rcb(p): 'action : LET eqns LCB action RCB' p[0] = LetAction(*(p[2] + [p[4]]))
def p_action_let_eqns_lcb_action_rcb(p): 'action : LET eqns sequence' p[0] = LetAction(*(p[2] + [p[3]]))