import type { TransformArg, MapIndexObject } from '../types.js';
type NormalizeBasis = 'deviation' | 'first' | 'last' | 'min' | 'max' | 'mean' | 'median' | 'sum' | 'extent' | MapIndexObject;
export declare function normalizeX<T>(args: TransformArg<T>, basis: NormalizeBasis): {
    data: import("../types.js").DataRecord[];
};
export declare function normalizeY<T>(args: TransformArg<T>, basis: NormalizeBasis): {
    data: import("../types.js").DataRecord[];
};
export {};