import type { MapValidation } from './validateMapData.js';
export declare class MapValidationError extends Error {
    readonly mapValidation: MapValidation;
    constructor(mapValidation: MapValidation);
}
export declare const MIN_RENDERABLE_COVERAGE = 0.1;
export declare const findUnrenderableMap: (mapValidation: MapValidation | undefined) => MapValidation | undefined;
/** Throw when a map layer is at or below the coverage gate — signing must refuse. */
export declare const assertRenderableMap: (mapValidation: MapValidation | undefined) => void;