/**
 * Convert a joule value (display-tier `number`) into microjoule microunits
 * (`bigint`). Use only at trust boundaries (rate tables, user input, legacy
 * DTO hydration). Internal arithmetic SHALL stay in `bigint` microunits.
 *
 * @throws {InvalidAmountError} If the input is non-finite or negative.
 *
 * @see asset-account-store-generalization spec, Requirement 1.2.
 */
export declare function joulesToMicrojoules(joules: number): bigint;
/**
 * Convert microjoule microunits (`bigint`) back into a joule `number` for
 * display only. This conversion may lose precision above
 * `Number.MAX_SAFE_INTEGER`; do **not** round-trip arithmetic through it.
 *
 * @see asset-account-store-generalization spec, Requirement 1.2.
 */
export declare function microjoulesToJoules(microjoules: bigint): number;
//# sourceMappingURL=microunits.d.ts.map