import type { UnitFactors } from '@formitiva/core';
import type { DefinitionPropertyField } from '@formitiva/core';
export declare function useUnitValueField(definitionName: string, field: DefinitionPropertyField, value: [string | number, string], unitFactors: UnitFactors, t: (key: string) => string, onChange?: (v: [string, string], err: string | null) => void, onError?: (err: string | null) => void): {
    value: string;
    unit: string;
    error: string | null;
    setValue: (v: string) => void;
    setUnit: (u: string) => void;
    setBoth: (v: string, u: string) => void;
};
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