/**
 * Returns the sequence delta to use when checking which TransactionVersion to
 * use for creating a new Transaction. Optimistically chooses a version based on
 * the expiration sequence delta to give the Transaction a better chance of
 * being accepted when there is a version change happening soon.
 */
declare function versionSequenceDelta(expirationDelta: number): number;
export declare const TransactionUtils: {
    versionSequenceDelta: typeof versionSequenceDelta;
};
export {};
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