import { PublicKey } from "@meer-js/types";
/**
 * Creates a PublicKey instance from a string or an existing PublicKey instance.
 * @param value The string or PublicKey instance to create a PublicKey from.
 * @returns {PublicKey} The PublicKey instance.
 */
export declare function publicKeyFrom(value: string | PublicKey): PublicKey;
/**
 * Creates a PublicKey instance from an encoded key string.
 * @param encodedKey The encoded key string.
 * @returns {PublicKey} The PublicKey instance created from the encoded key string.
 */
export declare function publicKeyFromString(encodedKey: string): PublicKey;
/**
 * Returns a string representation of the public key.
 * @param publicKey The PublicKey instance.
 * @returns {string} The string representation of the public key.
 */
export declare function publicKeyToString(publicKey: PublicKey): string;
/**
 * Verifies a message signature using the public key.
 * @param publicKey The PublicKey instance.
 * @param message The message to be verified.
 * @param signature The signature to be verified.
 * @returns {boolean} `true` if the signature is valid, otherwise `false`.
 */
export declare function verifySignature(publicKey: PublicKey, message: Uint8Array, signature: Uint8Array): boolean;
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