import { CannonSigner } from '@usecannon/builder';
import * as viem from 'viem';
/**
 * Checks if a package is registered on a registry provider.
 *
 * @param {Object[]} registryProviders - An array of objects containing viem.PublicClient and array of CannonSigner.
 * @param {string} packageRef - The reference string of the package to check.
 * @param {viem.Address} contractAddress - Target registry address
 * @returns {Promise<boolean[]>} - A promise that resolves to an array of booleans, each indicating if the package is registered in the corresponding registry.
 */
export declare const isPackageRegistered: (registryProviders: {
    provider: viem.PublicClient;
    signers: CannonSigner[];
}[], packageRef: string, contractAddress: viem.Address[]) => Promise<boolean>;
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