/**
 * 类型转换
 * @param type
 * @param arg
 */
export declare function type_convert(type: any, arg: any): any;
export declare class UploadFileInfo {
    fileName: string;
    contentType: string;
    body: Class_SeekableStream;
    constructor(v: any);
    static cast(v: any): UploadFileInfo;
    static check(v: any): boolean;
}
export declare class IntNumber {
    private n;
    constructor(v: any);
    valueOf(): number;
    static cast(v: any): number;
}
export declare class ObjVal_Number {
    static cast(v: any): {
        [index: string]: number;
    };
}
export declare class ObjKV_Number {
    static cast(v: any): {
        [index: number]: number;
    };
}
export declare class MapVal_Number extends Map<string, number> {
    constructor(es?: {
        [index: string]: number;
    });
    static cast(v: any): Map<string, number>;
}
export declare class MapKV_Number extends Map<number, number> {
    constructor(es?: {
        [index: number]: number;
    });
    static cast(v: any): Map<number, number>;
}