import { type Actor, type DomainEvent } from '@substrat-run/contracts';
/** The actor on every event the kernel writes itself, outside any caller's operation. */
export declare const KERNEL_ACTOR: Actor;
/**
 * The outbox write for an event the kernel records OUTSIDE an operation. A reconcile has no
 * operation, no caller and no delivery, so `operation`, `caused_by` and `invocation_id` are null,
 * which is what each says about such an event; the envelope's own fields are written as given.
 * `version` is the deploy that wrote it.
 */
export declare function kernelOutboxInsertSql(e: DomainEvent, version: string | null): {
    sql: string;
    params: (string | number | null)[];
};
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