Echo a message from another app in discord - python-3.x

Question

I have a bot running in a separate app, but there is a specific variable holding data that I want to also be echo'd on my discord server. The bot itself is huge, but I can pin the specific method here
import discord
import asyncio
import rpChat
global note
class EchoBot(rpChat.ChatClient):
def on_PRI(self, character, message):
super().on_PRI(character, message)
note = character + ": " + message
global note
if message[:1] == "~":
super().PRI("A GameMaster", note)
to try to send this message to discord, I have the following. This is not put in the class above, but just below it, and is not in a class itself:
client = discord.Client()
async def discordEcho():
"""Background task that sends message sent from chat to an appropriate Discord channel
when global messege data is updated"""
await client.wait_until_ready()
channel = client.get_channel(serverroom}
while not client.is_closed():
global note
await channel.send(channel, note)
The data to grab the channel IDs are found in a json
file = open("credentials.json", "r", encoding="utf-8")
info = json.load(file)
file.close()
token = info["discord"]
serverroom = info["serverroom"]
client.loop.create_task(discordEcho())
client.run(token)
When I try this, I obtain:
await client.send_message(channel, message)
AttributeError: 'Client' object has no attribute 'send_message'
And I am unsure why. I have built a bot for both this chat platform, and for discord, but this is the first time I've ever attempted to bridge messages between the two. I am sure what I have offered is clear as mud, but any help would be appreciated, if possible.
Edit:
Edited changes to code. It is working thanks to comment below.

Answer 1

client.send_message is an old, outdated method, it has been replaced with Messageable.send
async def discordEcho():
"""Background task that sends message sent from chat to an appropriate Discord channel
when global messege data is updated"""
await client.wait_until_ready()
channel = client.get_channel(serverroom)
while not client.is_closed():
global note
await channel.send(note)
Side note: you first need to wait_until_ready before getting the channel to wait until the cache is done loading, otherwise channel will be None