schedule doesn't work

[aminbahrabadi]

I have a function, when I run it with async_task:

async_task('sms.tasks.send',
                       username=username,
                       password=password,
                       text=text,
                       to=to,
                       path=path,
)

everything is ok, but when I run this with schedule:

schedule('sms.tasks.send',
                       username=username,
                       password=password,
                       text=text,
                       to=to,
                       path=path,
next_run=scheduled_time)

It doesn't work! It's like kwargs are not passed in schedule.
Can anyone guide me?