Sends every RISC event a directory write calls for, as risc.observe()
decides them, to every stream that takes the type and covers the subject.
Nobody awaits it.
Parameters
Optionalnotice: any
the directory's account observer notice
Returns Promise<EmitResult>
a promise of { sent, streams }, with why when nothing was
sent; it never rejects
Sends every RISC event a directory write calls for, as
risc.observe()decides them, to every stream that takes the type and covers the subject. Nobody awaits it.