import { LLMRoles, type LLMHistoryEntry, type LLMMessageTextContent } from '../LLMService.typedefs';
import { type LLMHistoryMessage, type LLMPlainMessage } from '../client/llmClient.typedefs';
export interface LLMPlainTextContentMessage {
    role: LLMRoles;
    content: LLMMessageTextContent[];
}
/**
 * Maps the client's persisted plain-message history into the gateway's
 * content-message shape. The single mapper both `generate` and `runAgent` use,
 * so a persisted session replays identically through either surface.
 */
export declare function plainMessagesToContentMessages(history: LLMPlainMessage[] | undefined): LLMPlainTextContentMessage[];
/**
 * Maps a restored agent conversation into the gateway's history entries: a
 * plain message becomes a content message, while a tool call, a tool result
 * and a context entry pass through as themselves for the provider to render
 * natively. The pairing repair runs here, so every provider receives a history
 * whose calls and results already match.
 */
export declare function historyMessagesToEntries(history: LLMHistoryMessage[] | undefined): LLMHistoryEntry[];