How do I obtain a checksum for a Taproot descriptor so that I can import it using importmulti?

I tried to import an example Taproot descriptor using bitcoin-cli importmulti

tr(c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5,{pk(fff97bd5755eeea420453a14355235d382f6472f8568a18b2f057a1460297556),pk(e493dbf1c10d80f3581e4904930b1404cc6c13900ee0758474fa94abe8c4cd13)})

I got the error “Missing checksum”. How do I generate the checksum and where do I append it to the descriptor?