import type { RenderArgsDeserialized } from './types.ts';
import type { Feature } from '@jbrowse/core/util';
export declare function makeImageData({ ctx, canvasWidth, canvasHeight, renderArgs, }: {
    ctx: CanvasRenderingContext2D;
    canvasWidth: number;
    canvasHeight: number;
    renderArgs: RenderArgsDeserialized;
}): Promise<{
    mafs: {
        feature: Feature;
        mostFrequentAlt: string;
        alleleCounts: Record<string, number>;
    }[];
    arr: string[][];
    featureData: {
        alt: string[];
        ref: string;
        name: string;
        description: string;
        length: number;
    }[];
}>;