discord.py verifique si el usuario tiene rol
@bot.command(pass_context=True)
@commands.has_role("Admin")
async def unmute(ctx, user: discord.Member):
role = discord.utils.find(lambda r: r.name == 'Member', ctx.message.server.roles)
if role in user.roles:
await bot.say("{} is not muted".format(user))
else:
await bot.add_roles(user, role)
Stupid Sandpiper