export declare const handleUri: (uri: string | undefined) => string;
export declare const getNonce: () => string;
export declare const getPageNo: (url: string) => string;
export declare const fetcher: (api: string, args: any) => Promise<any>;
export declare const shimmer: (w: number, h: number) => string;
export declare const toBase64: (str: string) => string;
export declare const getAssetProtocol: (type: number | undefined) => "ERC-721" | "ERC-1155";