export type WorkflowRunAsyncActivityPendingCallbackStatus = 'received' | 'advanced' | 'rejected';
export interface WorkflowRunAsyncActivityPendingCallbackRequest {
    headers: Record<string, string>;
    body: string;
}
export interface WorkflowRunAsyncActivityPendingCallbackOptions {
    id?: string;
    status?: WorkflowRunAsyncActivityPendingCallbackStatus;
    createdAt?: Date;
    updatedAt?: Date;
}
export declare class WorkflowRunAsyncActivityPendingCallback {
    readonly id: string;
    readonly pendingId: string;
    readonly method: string;
    readonly request: WorkflowRunAsyncActivityPendingCallbackRequest;
    readonly status: WorkflowRunAsyncActivityPendingCallbackStatus;
    readonly createdAt: Date;
    readonly updatedAt: Date;
    constructor(pendingId: string, method: string, request: WorkflowRunAsyncActivityPendingCallbackRequest, options?: WorkflowRunAsyncActivityPendingCallbackOptions);
}