export declare function tryDecrypt(encrypted: Uint8Array, opts: {
    symmetricKey?: Uint8Array;
    privateKey?: Uint8Array | string;
}): {
    bytes: Uint8Array;
    decrypted: boolean;
};
export declare function tryDecryptFragments(fragments: Uint8Array[], symmetricKey: Uint8Array | undefined, privateKey: Uint8Array | string | undefined): Uint8Array[] | null;
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