/**
 * graph:orphan-subtree — find functions not reachable from any entry point.
 *
 * Reachability: BFS from inferEntryPoints + config.entryPointHashes
 * across the forward callees adjacency. Any FunctionOccurrence not
 * visited is an orphan. Test-only reachability is a separate rule
 * (test-only-reachable); orphan-subtree treats test files as part of
 * the graph (their module-init is its own entry by name-match).
 */
export declare const orphanSubtreeRule: import("../types.js").Rule;
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