import { ConverterConfig } from '../types/converterTypes';
export declare function isValidNumber(num: number | string | bigint): boolean;
export declare function splitNumber(num: number | string | bigint): {
    integer: bigint;
    decimal?: string;
};
export declare function roundDecimal(decimal: string): string;
export declare function validateDecimal(decimal: string | undefined): boolean;
export declare function normalizeDecimal(decimal: string | undefined): string | undefined;
export declare function validateCustomMappings(config: Required<ConverterConfig>): boolean;
export declare function getScaleValue(scale: number | string): bigint;