export declare const hasHexPrefix: (str: string) => boolean;
export declare const stripHexPrefix: (str: string) => string;
export declare const addHexPrefix: (str: string) => string;
export declare const isHexString: (value: string, length?: number) => boolean;
export declare const stripHexStartZeroes: (str: string) => string;
export declare const formatAnyHex: (value: any) => any;
export declare function bytesToHex(uint8a: Uint8Array): string;
export declare function hexToBytes(hex: string): Uint8Array;
export declare function parseChainId(chainId: string | number | undefined): number;
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