import { type HistoricalToolInputRetentionOptions } from "../../chat/message-prep.js";
import type { ChatUiMessage } from "../../chat/types.js";
import { type AgentRuntimeMessage } from "./message-adapter.js";
import { type RuntimeFileContentFetcher, type RuntimeFileUrlResolver } from "./message-file-url-refresh.js";
/** Options accepted by prepare agent runtime messages from UI messages. */
export type PrepareAgentRuntimeMessagesFromUiMessagesOptions = {
    messages: readonly ChatUiMessage[];
    emptyConversationPrompt?: string;
    resolveFileUrl?: RuntimeFileUrlResolver;
    fetchFileContent?: RuntimeFileContentFetcher;
    abortSignal?: AbortSignal;
    fileContentFetchTimeoutMs?: number;
    providerOwnedToolNames?: readonly string[];
    historicalToolInputRetention?: HistoricalToolInputRetentionOptions;
};
/** Prepare agent runtime messages from UI messages. */
export declare function prepareAgentRuntimeMessagesFromUiMessages(options: PrepareAgentRuntimeMessagesFromUiMessagesOptions): Promise<AgentRuntimeMessage[]>;
//# sourceMappingURL=message-preparation.d.ts.map