import { HierarchyNodeKey } from "@itwin/presentation-hierarchies";
import type { Id64String } from "@itwin/core-bentley";
interface ModelsTreeNode {
    key: HierarchyNodeKey;
    extendedData?: {
        [id: string]: any;
    };
}
/**
 * @internal
 */
export declare namespace ModelsTreeNode {
    /**
     * Determines if a node represents a subject.
     */
    const isSubjectNode: (node: Pick<ModelsTreeNode, "extendedData">) => boolean;
    /**
     * Determines if a node represents a model.
     */
    const isModelNode: (node: Pick<ModelsTreeNode, "extendedData">) => boolean;
    /**
     * Determines if a node represents a category.
     */
    const isCategoryNode: (node: Pick<ModelsTreeNode, "extendedData">) => boolean;
    /** Returns type of the node. */
    const getType: (node: ModelsTreeNode) => "subject" | "model" | "category" | "element" | "elements-class-group";
    /**
     * Retrieves model ID from node's extended data.
     */
    const getModelId: (node: Pick<ModelsTreeNode, "extendedData">) => Id64String | undefined;
    /**
     * Retrieves category ID from node's extended data.
     */
    const getCategoryId: (node: Pick<ModelsTreeNode, "extendedData">) => Id64String | undefined;
}
export {};
//# sourceMappingURL=ModelsTreeNode.d.ts.map