[Python] How to make bot status say member count for all the servers that its in (discord.py)

Sorry for the long title. I want my bot to tell me how many members that my bot is in a server with in the bot's status. In other words, I want my bot's statues to say Watching [member count] people and [server count] servers, but I don't know how. Can anyone help?

@client.event
async def on_ready():
print('Potato Cat is ready ')
await client.change_presence(
activity=discord.Activity(
type=discord.ActivityType.watching,
name=f'{len(client.guilds)} servers and {len(client.members)} people'))

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