import type { TruncationMode } from '../../typography/text-ellipsis/TextEllipsis.js';
import type { SankeyHoverState } from './types/sankey-hover.js';
export declare const DISPLAY_NAME = "SankeyChart";
export declare const INITIAL_HOVER_STATE: SankeyHoverState;
export declare const DEFAULT_TRUNCATION_MODE: TruncationMode;
/** d3-sankey node geometry defaults (visual tuning deferred). */
export declare const DEFAULT_NODE_WIDTH = 24;
export declare const DEFAULT_NODE_PADDING = 20;
export declare const LAYOUT_MARGIN = 4;
export declare const FALLBACK_NODE_COLOR = "#888888";
export declare const NODE_BORDER_RADIUS = 4;
export declare const INSIDE_LABEL_PADDING = 8;
export declare const INSIDE_LABEL_WIDTH_RATIO = 0.8;
export declare const MAX_SIDE_LABEL_WIDTH_RATIO = 0.2;
export declare const LINK_OPACITY_LIGHT = 0.4;
export declare const LINK_OPACITY_DARK = 0.5;
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