import type { WorkflowExpression } from '../expression/workflow-expression.js';
import { type ContextPathSegment } from './extract-context-paths.js';
/** A known or conservatively unknown dependency on a prior event payload. */
export type HistoricalEventPayloadAccessKind = 'payload' | 'unknown';
export interface HistoricalEventPayloadAccess {
    readonly kind: HistoricalEventPayloadAccessKind;
    readonly root: 'executions';
    readonly source: string;
    readonly segments?: readonly ContextPathSegment[];
    readonly reason?: 'dynamic';
}
export interface HistoricalEventPayloadAccessAnalysis {
    readonly accesses: readonly HistoricalEventPayloadAccess[];
}
/**
 * Classifies references that can require payload bodies from prior executions.
 *
 * `execution.events` is the current execution contract and is intentionally not
 * selected here. The path extractor remains the authority for CEL traversal,
 * including indexed and comprehension-based access; this layer only assigns
 * the historical payload meaning to those exact paths.
 */
export declare function analyzeHistoricalEventPayloadAccess(expression: WorkflowExpression | string): HistoricalEventPayloadAccessAnalysis;
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