- [ ] The `signing` function argument of `log` will be removed, and `log` will simply always return a payload. The `payload` property will be renamed to `gpgmsg` so its purpose is more obvious. (This change is to simplify the type signature of `log` so we don't need function overloading; it is the only thing blocking me from abandoning the hand-crafted `index.d.ts` file and generating the TypeScript definitions directly from the JSDoc tags that already power the website docs.)