export declare function isCharNumber(value: string): boolean;
export declare function hasDecimalLegalChars(value: string): boolean;
export declare function hasIntegerLegalChars(value: string): boolean;
export declare function isEmpty(value: unknown): boolean;
export declare function hasDateLegalParts(years?: number, months?: number, days?: number, hours?: number, minutes?: number, seconds?: number): boolean;
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