import type { ElementsFilter } from "@microsoft/fast-element";
/**
 * filters out any whitespace-only nodes, to be used inside a template.
 *
 * @param value - The Node that is being inspected
 * @param index - The index of the node within the array
 * @param array - The Node array that is being filtered
 * @returns true if the node is not a whitespace-only node, false otherwise
 *
 * @public
 */
export declare const whitespaceFilter: ElementsFilter;
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