export declare function isFloat(str: string): boolean;
export declare function getIntervalStepTime({ duration, startNumber, endNumber, isDecrease, decimals, }: {
    startNumber: string;
    endNumber: string;
    duration: number;
    isDecrease: boolean;
    decimals: number;
}): number;
export declare function isIntervalEnd({ nextIntervalValue, end, decimals, }: {
    nextIntervalValue: string;
    end: string;
    decimals: number;
}): boolean;
export declare function getDecimals({ start, end }: {
    start: string;
    end: string;
}): number;
export declare function getNextIntervalValue({ isFloatRange, currentValue, decimals, operation, }: {
    isFloatRange: boolean;
    currentValue: number;
    decimals: number;
    operation: number;
}): string;