import { BlockNumberOrTag } from '@theqrl/web3-types';
/**
 * Compares between block A and block B
 * @param blockA - Block number or string
 * @param blockB - Block number or string
 *
 * @returns - Returns -1 if a \< b, returns 1 if a \> b and returns 0 if a == b
 *
 * @example
 * ```ts
 * console.log(web3.utils.compareBlockNumbers('latest', 'pending'));
 * > -1
 *
 * console.log(web3.utils.compareBlockNumbers(12, 11));
 * > 1
 * ```
 */
export declare const compareBlockNumbers: (blockA: BlockNumberOrTag, blockB: BlockNumberOrTag) => 0 | 1 | -1;
export declare const isNullish: (item: unknown) => item is undefined | null;
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