import { Address, PublicClient } from 'viem';
import { AllOffchainParamsData, OnSkippedOffchainParamsVersion, PegInConfiguration, ProtocolParamsReader, TBVProtocolParams, VersionedOffchainParams } from './types';
/**
 * Concrete protocol params reader using viem.
 *
 * Every read method runs the matching validator from
 * `protocol-params-validation` before returning, so callers don't have to
 * remember to validate.
 *
 * Usage:
 * ```ts
 * const reader = new ViemProtocolParamsReader(publicClient, protocolParamsAddress);
 * const config = await reader.getPegInConfiguration();
 * ```
 */
export declare class ViemProtocolParamsReader implements ProtocolParamsReader {
    private publicClient;
    private contractAddress;
    constructor(publicClient: PublicClient, contractAddress: Address);
    getTBVProtocolParams(): Promise<TBVProtocolParams>;
    getLatestOffchainParams(): Promise<VersionedOffchainParams>;
    getOffchainParamsByVersion(version: number): Promise<VersionedOffchainParams>;
    getLatestOffchainParamsVersion(): Promise<number>;
    getTimelockPeginByVersion(version: number): Promise<number>;
    /**
     * Returned as `bigint` with no `Number` narrowing: the registry compares it
     * against `block.number`, so callers must do the same arithmetic the
     * contract does. `0` is the documented "disabled" case and is returned as
     * `0n`. A missing getter or a non-bigint payload throws — never coerced to
     * `0`, which would fail open and skip the observation window.
     *
     * @throws If the deployment does not expose `peginActivationDelay()`, or
     *   the decoded payload is not a `bigint`.
     */
    getPeginActivationDelay(): Promise<bigint>;
    /**
     * Read TBV protocol params, latest offchain params, and the latest version
     * label atomically via multicall. The version is paired with the params so
     * that a governance update between separate reads cannot let JS build BTC
     * scripts with version N params while the contract registers the vault
     * under version N+1.
     */
    getPegInConfiguration(): Promise<PegInConfiguration>;
    /**
     * Fetch every historical offchain params version in a single multicall.
     * Iterates 1..latestVersion and calls `getOffchainParamsByVersion` for each.
     * Versions whose payload fails validation are skipped (not included in the
     * returned map) so a single bad historical version doesn't block the
     * lookup of the rest.
     *
     * @param onSkippedVersion - optional observer invoked once per skipped
     *   version. Use to log/telemeter without coupling the SDK to a logger.
     */
    fetchAllOffchainParams(onSkippedVersion?: OnSkippedOffchainParamsVersion): Promise<AllOffchainParamsData>;
}
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