export declare abstract class AudioValidator {
    static mime(file: File, rule: string[]): Promise<{
        valid: boolean;
        message: string;
    }>;
    static minSize(file: File, rule: number): Promise<{
        valid: boolean;
        message: string;
    }>;
    static maxSize(file: File, rule: number): Promise<{
        valid: boolean;
        message: string;
    }>;
    static minDuration(file: File, rule: number): Promise<{
        valid: boolean;
        message: string;
    }>;
    static maxDuration(file: File, rule: number): Promise<{
        valid: boolean;
        message: string;
    }>;
}