import type { Action } from '../app-action-type.js';
import type { State } from '../app-state.js';
declare const conversationActionTypes: readonly ["addEntry", "archiveLoaded", "startArchiveLoad", "compactHistory", "setBuffer", "clearInput", "clearHistory", "streamDelta", "streamReset", "status", "interrupt", "steerStart", "steerConsume", "resetInterrupts", "hint", "copiedNotice", "brainStatus"];
type ConversationAction = Extract<Action, {
    type: (typeof conversationActionTypes)[number];
}>;
export declare function isConversationAction(action: Action): action is ConversationAction;
/** Reduces retained conversation history, input buffers, streams, and run status. */
export declare function reduceConversation(state: State, action: ConversationAction): State;
export {};
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