in runtimes/runtimes/standalone.ts [344:351]
sendProgress: async <P>(type: ProgressType<P>, token: ProgressToken, value: P) => {
if (encryptionKey) {
const encryptedProgress = await encryptObjectWithKey(value as Object, encryptionKey)
return lspConnection.sendProgress(type, token, encryptedProgress as P)
}
return lspConnection.sendProgress(type, token, value)
},