import type { ScatterItemTooltipContext, ScatterItemTooltipParams } from './scatter-item-tooltip.types';
/**
 * Build scatter/bubble tooltip params from an ECharts `showTip` action and chart instance.
 * Ignores axis-style payloads (`dataByCoordSys`). Skips non-scatter series (e.g. regression line).
 */
export declare function scatterItemParamsFromShowTip(chart: any, evt: any, ctx: ScatterItemTooltipContext, themeSeries: Array<{
    color: string;
}>): ScatterItemTooltipParams | null;
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