import type {  ProviderEvent,  ProviderInterruptTurnInput,  ProviderKind,  ProviderRespondToRequestInput,  ProviderSendTurnInput,  ProviderSession,  ProviderSessionStartInput,  ProviderStopSessionInput,  ProviderTurnStartResult,} from "@t3tools/contracts"; export interface ProviderThreadTurnSnapshot {  id: string;  items: unknown[];} export interface ProviderThreadSnapshot {  threadId: string;  turns: ProviderThreadTurnSnapshot[];} export interface ProviderAdapter {  readonly kind: ProviderKind;  onEvent(listener: (event: ProviderEvent) => void): () => void;  hasSession(sessionId: string): boolean;  startSession(input: ProviderSessionStartInput): Promise<ProviderSession>;  sendTurn(input: ProviderSendTurnInput): Promise<ProviderTurnStartResult>;  interruptTurn(input: ProviderInterruptTurnInput): Promise<void>;  respondToRequest(input: ProviderRespondToRequestInput): Promise<void>;  stopSession(input: ProviderStopSessionInput): void;  listSessions(): ProviderSession[];  readThread(sessionId: string): Promise<ProviderThreadSnapshot>;  rollbackThread(sessionId: string, numTurns: number): Promise<ProviderThreadSnapshot>;  stopAll(): void;  dispose(): void;}