import type { CompositionNode, LeafPropsFactory, CompositionComponentNode, NodePropsFactory, CompositionStructureNode } from './types.js';
/**
 * Test if the Node within VisualBuilder is an Element
 *
 * @deprecated      Visual Builder has been updated to favour components over Elements
 * @param           node        The Node to test
 * @returns         `true` if the Node is an element, `false` otherwise.
 */
export declare function isElementNode(node: CompositionNode<Record<string, any>>): node is CompositionComponentNode<Record<string, any>>;
/**
 * Test if the Node within VisualBuilder is a Component
 *
 * @param           node        The Node to test
 * @returns         `true` if the Node is an element, `false` otherwise.
 */
export declare function isComponentNode(node: CompositionNode<Record<string, any>>): node is CompositionComponentNode<Record<string, any>>;
export declare function isComponentNodeOfType<ET extends Record<string, any>>(node: CompositionNode<Record<string, any>>, test: (data: Record<string, any>) => data is ET): node is CompositionComponentNode<ET>;
export declare function isStructureNode(node: CompositionNode<Record<string, any>>): node is CompositionStructureNode;
/**
 * Test if the provided value is a Visual Builder node
 *
 * @param       toTest      The value to test
 * @returns     `true` when the value is a Visual Builder node, `false`
 *              otherwise
 */
export declare function isNode(toTest: any): toTest is CompositionNode;
export declare const defaultPropsFactory: LeafPropsFactory;
export declare const defaultNodePropsFactory: NodePropsFactory;
export declare function ucFirst(input: string | undefined | null): string | null;