import { SmrtObject, type SmrtObjectOptions } from '@happyvertical/smrt-core';
/**
 * Durable daily receipt for one member's contribution to one field.
 *
 * The counter action creates this before incrementing its aggregate. Its
 * natural key makes the anti-inflation rule durable across requests and
 * replicas: one `(tenant, user, object, field, UTC day)` sample may affect
 * usage evidence. Receipts intentionally retain no submitted value.
 */
export declare class FieldUsageReportReceipt extends SmrtObject {
    tenantId?: string;
    userId: string;
    objectRef: string;
    fieldName: string;
    period: string;
    constructor(options?: FieldUsageReportReceiptOptions);
}
export interface FieldUsageReportReceiptOptions extends SmrtObjectOptions {
    tenantId?: string;
    userId?: string;
    objectRef?: string;
    fieldName?: string;
    period?: string;
}
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