import { VNode } from 'vue';
export declare function flattenSlotContents(slotContents: VNode[]): (VNode | string)[];
/**
 * Check whether a given node represents a component. Optionally check whether it represents an
 * instance of a specific component.
 *
 * isComponentVNode( node ) checks whether node is a component node of any type. To check whether
 * node is a component node that is an instance of e.g. the CdxIcon component, use
 * isComponentVNode( node, CdxIcon.name )
 *
 * @param node VNode to test
 * @param componentName If set, check whether the component node has this name. Where possible,
 *  import the component and pass CdxFooBar.name, rather than passing a hard-coded string like
 *  'CdxFooBar'
 * @return Whether node is a component node; and, if componentName is set, whether it represents
 *  an instance of the component with that name.
 */
export declare function isComponentVNode(node: VNode, componentName?: string): boolean;
/**
 * Check whether a given node represents an HTML tag. Optionally check whether it represents
 * a specific tag.
 *
 * @param node VNode to test
 * @param tagName If set, check whether the node represents this HTML tag
 * @return Whether node is an HTML tag node; and, if tagName is set, whether it's that specific
 *  HTML tag.
 */
export declare function isTagVNode(node: VNode, tagName?: string): boolean;