/**
 *
 * @param {import("../spec/view.js").ViewSpec} spec
 * @returns {spec is import("../spec/view.js").UnitSpec}
 */
export function isUnitSpec(spec: import("../spec/view.js").ViewSpec): spec is import("../spec/view.js").UnitSpec;
/**
 *
 * @param {import("../spec/view.js").ViewSpec} spec
 * @returns {spec is import("../spec/view.js").LayerSpec}
 */
export function isLayerSpec(spec: import("../spec/view.js").ViewSpec): spec is import("../spec/view.js").LayerSpec;
/**
 *
 * @param {import("../spec/view.js").ViewSpec} spec
 * @returns {spec is import("../spec/view.js").FacetSpec}
 */
export function isFacetSpec(spec: import("../spec/view.js").ViewSpec): spec is import("../spec/view.js").FacetSpec;
/**
 *
 * @param {object} spec
 * @returns {spec is import("../spec/view.js").ImportSpec}
 */
export function isImportSpec(spec: object): spec is import("../spec/view.js").ImportSpec;
/**
 *
 * @param {import("../spec/view.js").ViewSpec} spec
 * @returns {spec is import("../spec/view.js").VConcatSpec}
 */
export function isVConcatSpec(spec: import("../spec/view.js").ViewSpec): spec is import("../spec/view.js").VConcatSpec;
/**
 *
 * @param {import("../spec/view.js").ViewSpec} spec
 * @returns {spec is import("../spec/view.js").HConcatSpec}
 */
export function isHConcatSpec(spec: import("../spec/view.js").ViewSpec): spec is import("../spec/view.js").HConcatSpec;
/**
 *
 * @param {import("../spec/view.js").ViewSpec} spec
 * @returns {spec is import("../spec/view.js").ConcatSpec}
 */
export function isConcatSpec(spec: import("../spec/view.js").ViewSpec): spec is import("../spec/view.js").ConcatSpec;
//# sourceMappingURL=viewSpecGuards.d.ts.map