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DASFQGORX56YK5E4Y7GGYZSQQQMUXYTZZ4A6IVWSTI3QGRUORLPAC
QYDGYIZRNFRIQD7RUCY5YAN3F2THZA74E5UOHPIFWSULEJFAFVJQC
OP6SVMOD2GTQ7VNJ4E5KYFG4MIYA7HBMXJTADALMZH4PY7OQRMZQC
OTWDDJE7TTE73D6BGF4ZN6BH2NFUFLPME2VJ3CPALH463UGWLEIQC
OFINGD26ZWCRDVVDI2ZIBLMHXKEMJA6MRNLANJYUHQPIJLPA7J2AC
TSMS6W4DOKQNUQ4PEMTLOIODR33VFPN6MMNS73ZPSU4BOQVRGPNAC
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UUUVNC4DWEEL7WV5IRPKPZ6HZMYCPA53XM7LJWICUD4E6GN37IRQC
if cursor.set(txn, key, value)?.is_none() {
// If the key and value weren't found, return.
return Ok(false);
// If the key and value weren't found, return.
match (cursor.set(txn, key, value)?, value) {
(Some((k, v)), Some(value)) if k == key && v == value => {}
(Some((k, _)), None) if k == key => {}
_ => return Ok(false),