@client.event
async def on_member_join(member):
    global welcome_channel_dict
    global autoroles
    channel_id = welcome_channel_dict[str(member.guild.id)]
    embed=discord.Embed(colour=discord.Colour.green())
    embed=discord.Embed(title="<:memberjoined:778987095837769759> Member Joined", color=0x2ECC71, description=f'{member.mention} joined **{member.guild}**! Enjoy your stay!  :tada:')
    embed.set_thumbnail(url=member.avatar_url)
    await client.get_channel(channel_id).send(embed=embed)

    role = discord.utils.get(member.guild.roles, id=autoroles[str(member.guild.id)])

    await member.add_roles(role)