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19 lines
552 B
TypeScript
19 lines
552 B
TypeScript
import { Composer, Middleware, Telegraf } from 'telegraf';
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export type Filter<T extends any[], F> = T extends []
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? []
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: T extends [infer Head, ...infer Tail]
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? Head extends F
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? Filter<Tail, F>
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: [Head, ...Filter<Tail, F>]
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: [];
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export type OnlyFunctionPropertyNames<T> = {
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[K in keyof T]: T[K] extends (...args: any) => any ? K : never;
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}[keyof T];
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export type ComposerMethodArgs<
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T extends Composer<never>,
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U extends OnlyFunctionPropertyNames<T> = OnlyFunctionPropertyNames<T>
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> = Filter<Parameters<T[U]>, Middleware<never>>;
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