/**
 * Reference Graph Builder
 *
 * Builds the reference graph consumed by the circular reference detector:
 * extracts reference strings from resources/Bundles and resolves reference
 * strings to graph node IDs.
 */
export interface ReferenceNode {
    /** Unique identifier for this node (fullUrl, ResourceType/id, or #id) */
    id: string;
    /** Resource type if known */
    resourceType?: string;
    /** References from this node to other nodes */
    references: string[];
    /** Depth in the reference chain */
    depth: number;
    /** Parent node ID */
    parent?: string;
}
export interface ReferenceGraph {
    /** All nodes in the graph */
    nodes: Map<string, ReferenceNode>;
    /** Adjacency list for quick lookups */
    adjacencyList: Map<string, Set<string>>;
    /** Root nodes (nodes with no incoming references) */
    rootNodes: Set<string>;
}
/**
 * Build a reference graph from a resource
 */
export declare function buildReferenceGraph(resource: any, visitedObjects: WeakSet<object>): ReferenceGraph;
/**
 * Find node by reference string
 */
export declare function findNodeByReference(reference: string, nodes: Map<string, ReferenceNode>): string | null;
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