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The Telegram Bot Framework.
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type alias Filter
import { type Filter } from "";

This type infers which properties will be present on the given context object provided it matches the given filter query. If the filter query is a union type, the produced context object will be a union of possible combinations, hence allowing you to narrow down manually which of the properties are present.

In some sense, this type computes matchFilter on the type level.

definition: PerformQuery<C, RunQuery<ExpandShortcuts<Q>>>