interface Writableimport { type Writable } from "https://deno.land/x/proc@0.20.19/mod2.ts"; A writable. Type ParametersTMethodsgetterisClosed(): booleanIndicates this is closed. close(error?: Error): Promise<void>Close the writable. This must be called. Once closed, subsequent calls to write(...) will throw an error. It is safe to call close() multiple times. The error (or no error) passed on the first call will be honored. write(item: T): Promise<void>Write an item.