[Python] The command with slash does not appear in discord

I want to write a small bot in discord for my use, I ran into a problem that commands with slash are not displayed and don't work. How to fix it?

Scopes: enter image description here

Code:

@bot.tree.command(name="echo", description="Echoes a message.")
@app_commands.describe(message="The message to echo.")
async def echo(interaction: discord.Interaction, message: str) -> None:
await interaction.response.send_message(message)


I haven't tried anything, so I'm gonna go look it up on the Internet.

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