discord py add reaction to message

1#1
2message = ctx.send("text")
3#2
4message = channel.send("text")
5#3
6message = channel.fetch_message(messageid)
7#add reaction to message
8emoji = '\N{THUMBS UP SIGN}'
9await message.add_reaction(emoji)

1await message.add_reaction(emoji)

1#Get reactions from cached msg
2cache_msg = discord.utils.get(client.cached_messages, id=msg.id)
3n_players = await cache_msg.reactions[0].users().flatten()
4n_players = n_players[1:]