import type { ChannelAdapter } from "#channel/adapter.js";
import type { ActivitySnapshotV1 } from "#protocol/activity.js";
export interface ChannelActivityRenderer {
    readonly id: string;
    render(input: {
        readonly destination: Readonly<Record<string, unknown>>;
        readonly snapshot: ActivitySnapshotV1;
        readonly state: unknown;
    }): Promise<unknown>;
    dispose?(input: {
        readonly destination: Readonly<Record<string, unknown>>;
        readonly state: unknown;
    }): Promise<void>;
}
export interface ChannelActivityPresentation {
    readonly destination: (state: Record<string, unknown> | undefined) => Readonly<Record<string, unknown>>;
    readonly renderers: readonly ChannelActivityRenderer[];
}
export declare function attachChannelActivityPresentation(adapter: ChannelAdapter, presentation: ChannelActivityPresentation): void;
export declare function copyChannelActivityPresentation(source: ChannelAdapter, target: ChannelAdapter): void;
export declare function getChannelActivityPresentation(adapter: ChannelAdapter): ChannelActivityPresentation | undefined;