import type { AnyUpdate, Priority, UpdateHandler } from '@puregram/api';
export type { AnyUpdate, OnOptions, Priority, UpdateHandler } from '@puregram/api';
/**
 * predicate signature for `tg.onUpdate(predicate, handler, options?)`. type-guard
 * variant narrows the handler arg; plain-boolean keeps it as `AnyUpdate`.
 * `Promise<boolean>` works too — dispatcher awaits before invoking
 */
export type UpdatePredicate<T extends AnyUpdate = AnyUpdate> = ((update: AnyUpdate) => update is T) | ((update: AnyUpdate) => boolean) | ((update: AnyUpdate) => Promise<boolean>);
interface KindEntry {
    type: 'kind';
    kind: string;
    handler: UpdateHandler;
    priority: Priority;
    seq: number;
}
interface PredicateEntry {
    type: 'predicate';
    predicate: (update: AnyUpdate) => boolean | Promise<boolean>;
    handler: UpdateHandler;
    priority: Priority;
    seq: number;
}
export type DispatchEntry = KindEntry | PredicateEntry;
export type DispatchEntryInput = Omit<KindEntry, 'seq'> | Omit<PredicateEntry, 'seq'>;
export declare class Dispatcher {
    private readonly entries;
    private nextSeq;
    add(entry: DispatchEntryInput): void;
    on(kind: string, handler: UpdateHandler, priority?: Priority): void;
    off(kind: string, handler: UpdateHandler): void;
    runUserHandlers(update: AnyUpdate): Promise<void>;
    has(kind: string): boolean;
    collectAllowedKinds(): {
        kinds: Set<string>;
        opaque: boolean;
    };
}
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