1 export declare function merge(...sets: Array<string>): string;
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2 export declare function subexp(str: string): string;
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3 export declare function typeOf(o: any): string;
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4 export declare function toUpperCase(str: string): string;
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5 export declare function toArray(obj: any): Array<any>;
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6 export declare function assign(target: object, source: any): any;
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