import type { Hex } from "viem";
export declare const isValidSignature: (signature: Hex) => boolean;
export declare const extractSignatureComponents: (signature: Hex) => {
    r: Hex;
    s: Hex;
    v: bigint;
};
export declare const constructSignature: (params: {
    r: Hex;
    s: Hex;
    v: bigint;
}) => Hex;
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