How do I fix commands check error in discordpy?

So it seems that my check is not working, I believe the function is setup correctly but I may be wrong how should I go about fixing this error?

@client.command()
@commands.check(is_server_owner)
async def serversetup(guild,ctx):
  await guild.create_role(name='safe')
  await ctx.send('Please put the safe role above the AntiNuke role so those people will not be punished by the antinuke! | Server is setup!')

Here is the error I am getting

Ignoring exception in command serversetup:
Traceback (most recent call last):
  File "/home/runner/AntiNuke/venv/lib/python3.8/site-packages/discord/ext/commands/bot.py", line 939, in invoke
    await ctx.command.invoke(ctx)
  File "/home/runner/AntiNuke/venv/lib/python3.8/site-packages/discord/ext/commands/core.py", line 855, in invoke
    await self.prepare(ctx)
  File "/home/runner/AntiNuke/venv/lib/python3.8/site-packages/discord/ext/commands/core.py", line 778, in prepare
    raise CheckFailure('The check functions for command {0.qualified_name} failed.'.format(self))
discord.ext.commands.errors.CheckFailure: The check functions for command serversetup failed.

Here is the is_server_owner function

def is_server_owner(ctx):
    return ctx.message.author.id == ctx.guild.owner

Solution

The problem is that in your check you check whether the id of the author is the same as the object of the guild owner, so it will always return false. To fix this, simply change ctx.message.author.id to ctx.message.author.