export declare enum FeeValidationError {
    FEE_CANNOT_BE_NEGATIVE = 0,
    FEE_RATE_CANNOT_BE_NEGATIVE = 1,
    FEE_TOO_HIGH = 2,
    FEE_RATE_TOO_HIGH = 3,
    INPUT_AMOUNT_MUST_BE_POSITIVE = 4,
    INVALID_FEE = 5,
    INVALID_FEE_RATE = 6,
    INVALID_INPUT_AMOUNT = 7
}