discord py if is owner code example

Example 1: discord.py ban

@commands.command() # uses command decorators, in this case inside a cog
@commands.has_permissions(ban_members=True) # only people that have permissions to ban users can use this command
async def ban(self, ctx, user: discord.Member, *, reason): # The person banning someone has to ping the user to ban, and input a reason. Remove self if you are outside a cog.
    await ctx.guild.ban(user, reason=reason) # Bans the user.
    await user.send(f"You have been banned in {ctx.guild} for {reason}") # Private messages user.
    await ctx.send(f"{user} has been successfully banned.") # messages channel to tell everyone it worked

Example 2: discord py check if user is administrator

from discord.ext.commands import Bot, has_permissions, CheckFailure

client = Bot()

@client.command(pass_context=True)
@has_permissions(administrator=True)
async def whoami(ctx):
    msg = "You're an admin {}".format(ctx.message.author.mention)  
    await client.send_message(ctx.message.channel, msg)

@whoami.error
async def whoami_error(error, ctx):
    if isinstance(error, CheckFailure):
        msg = "You're an average joe {}".format(ctx.message.author.mention)  
        await client.send_message(ctx.message.channel, msg)