import Big from 'big.js';
/**
 * Convert a Big, string, or number to standard float (`number`). Returns `null` when
 * input value is `undefined`, `null`, or a `Big` value which cannot be safely converted
 * to `number`. Useful for working with `Big` values but small types, such as a small exponent,
 * which must be in number form to use with a `Big`.
 * @param value
 * @returns
 *
 * @category Strong Helpers
 */
export declare function toFloat(value?: number | string | Big | null): number | null;