import { Composer } from "https://deno.land/x/grammy@v1.21.1/composer.ts";
This is an advanced method of grammY.
Registers middleware behind a custom filter function that operates on the
context object and decides whether or not to execute the middleware. In
other words, the middleware will only be executed if the given predicate
returns false
for the given context object. Otherwise, it will be
skipped and the next middleware will be executed. Note that the predicate
may be asynchronous, i.e. it can return a Promise of a boolean.
This method is the same using filter
(normal usage) with a negated
predicate.
Parameters
...middleware: Array<Middleware<C>>
The middleware to register