Inserting a empty url argument in discord.Streaming doesn't report a exception

[Dafium]

Summary

Inserting a empty url argument in discord.Streaming doesn't report a exception

Reproduction Steps

• Run the code
• Observe that the bot status hasn't changed
• Observe that no exception has being reported

Minimal Reproducible Code

@bot.command()
@bot.is_owner()
async def status(ctx, *, status):
    await bot.change_presence(activity=discord.Streaming(name=str(status), type='Twitch', url=''))

Expected Results

discord.Streaming url argument is mandatory, this case should raise an exception.

Actual Results

No exceptions were raised and the programme acted as if everything was normal.

Intents

none

System Information

Python v3.9.4-final
discord.py v1.7.1-final
aiohttp v3.7.4.post0
system info: Windows 10 10.0.19041

Checklist

• I have searched the open issues for duplicates.
• I have shown the entire traceback, if possible.
• I have removed my token from display, if visible.

Additional Context

it's my first time i'm reporting a bug, sorry if it's not a good bug to report.

[Rapptz]

There's no validation on purpose since these objects are created on a hot loop.