import{type TemplateResult}from'lit';import{LyraElement}from'../../../internal/lyra-element.js';export type LyraSparklineAppearance='gradient'|'line'|'solid';export type LyraSparklineCurve='linear'|'natural'|'step';export type LyraSparklineTrend='positive'|'negative'|'neutral';
/** Geometry used to plot each sample. */
export type LyraSparklineMark='line'|'bar';
/**
* `<lr-sparkline>` — a zero-dependency inline SVG trend chart.
* Mirrors the Web Awesome `<wa-sparkline>` API under the `lr-` prefix and retains the earlier
* `values`/`mark`/`min`/`max` Lyra surface as an additive programmatic extension.
*
* @customElement lr-sparkline
* @csspart sparkline - The outer SVG wrapper.
* @csspart base - Deprecated alias for `sparkline` on the same SVG wrapper.
* @csspart fill - The filled area rendered by `appearance="solid"` and `appearance="gradient"`.
* @csspart line - The stroked trend path.
* @csspart area - Compatibility alias for `fill` on the same path.
* @csspart bar - Each rectangle rendered by the additive `mark="bar"` mode.
* @cssprop [--fill-color=var(--lr-color-brand-quiet)] - Area fill color. A `trend` supplies a
*   semantic token default, while an authored value always wins.
* @cssprop [--line-color=var(--lr-color-brand)] - Trend line color. A `trend` supplies a semantic
*   token default, while an authored value always wins.
* @cssprop [--line-width=var(--lr-border-width-medium)] - Trend line width.
* @cssprop [--lr-sparkline-stroke-width=var(--lr-border-width-medium)] - Compatibility alias used
*   as the fallback for `--line-width`.
* @status stable
* @since 4.0.0
*/
export declare class LyraSparkline extends LyraElement{static styles:import("lit").CSSResultGroup[];
/** Fill treatment under the trend line. */
appearance:LyraSparklineAppearance;
/** Interpolation used to connect adjacent samples. */
curve:LyraSparklineCurve;
/** Space-separated finite numeric samples. At least two are required. An empty or removed
* data attribute uses values instead; removal retains null property readback. */
data:string;
/** Accessible label applied verbatim to the SVG. */
label:string;
/** Semantic default color; public color custom properties take precedence. */
trend?:LyraSparklineTrend;
/** Compatibility accessible-name property. An authored host `aria-label` wins; otherwise a
* nonempty `label` precedes a nonempty programmatic value here. */
accessibleLabel:string|null;
/** Additive programmatic data source used when `data` is empty. Property-only. */
values:readonly number[];private _mark;
/** Geometry used to plot samples. Foreign tokens normalize to `line`. */
get mark():LyraSparklineMark;set mark(value:LyraSparklineMark);
/** Lower bound of the value scale (defaults to the data minimum). */
min?:number;
/** Upper bound of the value scale (defaults to the data maximum). */
max?:number;private readonly gradientId;private plotValues;private points;private linePath;private accessibleName;private renderBars;render():TemplateResult;}declare global{interface HTMLElementTagNameMap{'lr-sparkline':LyraSparkline;}}