how to send a message in a specific channel discord py

1channel = client.get_channel(12324234183172)
2await channel.send('hello')
3

1"""SEND MESSAGE IN SPECIFIC CHANNEL"""
2@client.command()
3async def announce(ctx, channel: discord.TextChannel):
4		await channel.send("My text")

1channel = client.get_channel(12324234183172) #channel id here
2await channel.send('hello')
3