import { z } from 'zod';
/**
 * Defines the base schema for orchestrator acceptance in the context of ArvoEvents.
 * This schema is used to validate and type-check the minimal required fields
 * for an orchestrator to accept a task or event.
 */
export declare const OrchestrationInitEventBaseSchema: z.ZodObject<{
    parentSubject$$: z.ZodNullable<z.ZodString>;
}, "strip", z.ZodTypeAny, {
    parentSubject$$: string | null;
}, {
    parentSubject$$: string | null;
}>;