import * as ts from "typescript";
/**
 * A selector function that extracts matching nodes from a source file.
 */
export type SelectorFn = (sourceFile: ts.SourceFile) => ts.Node[];
/**
 * Recursively collect nodes matching a predicate.
 */
export declare function collectNodes(root: ts.Node, predicate: (node: ts.Node) => boolean): ts.Node[];
/**
 * Register a custom selector.
 */
export declare function registerSelector(name: string, fn: SelectorFn): void;
/**
 * Resolve a selector name (or compound expression) to a SelectorFn.
 *
 * Compound selectors use `>` to scope: `"resource > property"` means
 * "find all `resource` nodes, then within each, find all `property` nodes".
 */
export declare function resolveSelector(name: string): SelectorFn;
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