/**
 * Per-site resolution trace (debug-only). When `GRAPH_SITE_LOG` points at a
 * file, every `resolveDeclToHash` decision appends one TSV row:
 *   engine \t ownerFile \t callee \t decl=<file> \t dts=<bool> \t spec=<...> \t out=<hash|DECLINE-*>
 *
 * This is the harness that root-caused the exact↔sharded divergence classes
 * (the decl-file discriminator + the matching-strictness asymmetry). It is OFF
 * with zero production cost when the env var is unset; kept so the next
 * divergence investigation starts from measurement, not a rebuilt harness.
 */
import type { ResolverContext } from '../edge-resolvers/types.js';
import type ts from 'typescript';
/** The inputs of one `resolveDeclToHash` decision, as traced by {@link traceResolveDecl}. */
export interface ResolveDeclDecision {
    readonly ctx: ResolverContext;
    readonly candidateNames: readonly string[];
    readonly bindingNames: readonly string[];
    readonly declSourceFile: ts.SourceFile;
    readonly dts: boolean;
    readonly out: string | null;
}
/** Append one resolveDeclToHash decision row when GRAPH_SITE_LOG is set; else a no-op. */
export declare function traceResolveDecl(decision: ResolveDeclDecision): void;
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