import { ValueFormat } from "../format";
import { Scale } from "../lib/types";
export declare function linearScale(domain: number[], range: [number, number], options?: {
    extendToZero?: boolean;
    lastTick?: "trim" | "extend" | "max";
    format?: ValueFormat;
}): Scale<number> | null;
export declare function numberScale(domain: number[], range: [number, number], options?: {
    extendToZero?: boolean;
    lastTick?: "trim" | "extend" | "max";
    format?: ValueFormat;
    scaleFn?: (value: number) => number;
}): Scale<number> | null;