import type { MultiRenderArgsDeserialized } from './types.ts';
export declare function makeImageData(ctx: CanvasRenderingContext2D, props: MultiRenderArgsDeserialized): Promise<{
    flatbush: ArrayBufferLike;
    items: {
        name: string;
        genotype: string;
        featureId: string;
        bpLen: number;
    }[];
    featureGenotypeMap: Record<string, {
        alt: unknown;
        ref: unknown;
        name: unknown;
        description: unknown;
        length: number;
    }>;
}>;