import type { HighlightItemIdentifierWithType } from '@mui/x-charts/models';
import type { SankeyHighlightScope } from "../sankey.highlight.types.js";
export declare function createSankeyIsFaded(highlightScope: SankeyHighlightScope | null | undefined, highlightedItem: HighlightItemIdentifierWithType<'sankey'> | null): (item: HighlightItemIdentifierWithType<"sankey"> | null) => boolean;