import { IChatModel } from "@empiricalrun/llm/chat";
import { CanonicalMessage, ChatStateError, ChatStateGeneric, PendingToolCall, ToolResult } from "@empiricalrun/shared-types/chat-agent";
export declare const CHAT_STATE_VERSIONS_MIGRATIONS_MAP: Record<string, (state: any) => any>;
export declare const LATEST_CHAT_STATE_VERSION = "0.1";
export declare const CHAT_STATE_PATH: string;
export declare function chatStateFromModel<T>({ chatModel, error, }: {
    chatModel: IChatModel<T>;
    error: ChatStateError | null;
}): {
    version: string;
    model: import("@empiricalrun/shared-types/chat-agent").SupportedChatModels;
    messages: T[];
    askUserForInput: boolean;
    error: ChatStateError | null;
};
export declare function getUsageSummary<T = CanonicalMessage>(chatState: ChatStateGeneric<T>): string;
export declare function loadChatState<T>({ resetChat, }: {
    resetChat: boolean;
}): ChatStateGeneric<T> | undefined;
export declare function saveToDisk<T>(chatState: ChatStateGeneric<T>): void;
export declare function fetchToolCallFromId(toolCallId: String, messages: CanonicalMessage[]): {
    toolCallQueuedAt: Date | undefined;
    toolCall: PendingToolCall | undefined;
    toolResult: ToolResult | undefined;
};
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