import { type NetworksRegistryInner, type Network, type APIURLKind } from "./types.js";
/**
 * Client for interacting with The Graph Networks Registry.
 * Provides methods to load the registry from json, file or URL.
 */
export declare class NetworksRegistry {
    private registry;
    /**
     * Creates a new NetworksRegistry instance.
     * @param registry - The parsed NetworksRegistry data
     */
    constructor(registry: NetworksRegistryInner);
    /**
     * Gets all networks in the registry.
     * @returns Array of all network elements
     */
    get networks(): Network[];
    /**
     * Gets the version of the loaded registry.
     * @returns Version string
     */
    get version(): string;
    /**
     * Gets the date of the last update of the registry.
     * @returns Date object
     */
    get updatedAt(): Date;
    /**
     * Attempts to fetch the registry from a given URL, returns null if fetch fails
     * @internal
     */
    private static tryFetchRegistry;
    /**
     * Fetches and loads the latest version of the networks registry. First tries to fetch from
     * the primary registry URL at networks-registry.thegraph.com, then falls back to the fallback URL at GitHub
     * Uses the library version to determine the latest compatible registry URL.
     * Library version 0.5.x will use the latest registry version 0.5.y even if 0.6.z is available
     *
     * @returns Promise that resolves to a new NetworksRegistry instance
     * @throws Error if the registry fetch fails
     *
     * @example
     * ```typescript
     * const registry = await NetworksRegistry.fromLatestVersion();
     * ```
     */
    static fromLatestVersion(): Promise<NetworksRegistry>;
    /**
     * Fetches and loads a specific version of the networks registry. First tries to fetch from
     * the primary registry URL at networks-registry.thegraph.com, then falls back to the fallback URL at GitHub
     *
     * @param version - The exact version to fetch (e.g. "0.5.0")
     * @returns Promise that resolves to a new NetworksRegistry instance
     * @throws Error if the registry fetch fails
     *
     * @example
     * ```typescript
     * const registry = await NetworksRegistry.fromExactVersion("0.5.0");
     * ```
     */
    static fromExactVersion(version: string): Promise<NetworksRegistry>;
    /**
     * Loads the networks registry from a URL.
     *
     * @param url - The URL to fetch the registry from
     * @returns Promise that resolves to a new NetworksRegistry instance
     * @throws Error if the fetch fails or the response is invalid
     */
    static fromUrl(url: string): Promise<NetworksRegistry>;
    /**
     * Creates a new registry instance from a JSON string.
     *
     * @param json - The JSON string containing registry data
     * @returns A new NetworksRegistry instance
     * @throws Error if the JSON is invalid
     */
    static fromJson(json: string): NetworksRegistry;
    /**
     * Loads the networks registry from a local JSON file.
     *
     * @param path - Path to the JSON file
     * @returns A new NetworksRegistry instance
     * @throws Error if the file cannot be read or contains invalid data
     */
    static fromFile(path: string): NetworksRegistry;
    /**
     * Gets the URL for the latest compatible version of the registry.
     * Uses the major and minor version from package.json.
     *
     * @returns The URL string for the latest version
     */
    static getLatestVersionUrl(): string;
    /**
     * Gets the URL for the latest compatible version of the registry at GitHub.
     * Uses the major and minor version from package.json.
     *
     * @returns The URL string for the latest version
     */
    static getLatestVersionFallbackUrl(): string;
    /**
     * Gets the URL for a specific version of the registry.
     *
     * @param version - The exact version (e.g. "0.5.0")
     * @returns The URL string for the specified version
     */
    static getExactVersionUrl(version: string): string;
    /**
     * Gets the URL for a specific version of the registry at GitHub.
     *
     * @param version - The exact version (e.g. "0.5.0")
     * @returns The URL string for the specified version
     */
    static getExactVersionFallbackUrl(version: string): string;
    /**
     * Finds a network by its unique identifier.
     *
     * @param id - The network ID (e.g. "mainnet", "optimism")
     * @returns The network if found, undefined otherwise
     *
     * @example
     * ```typescript
     * const mainnet = registry.getNetworkById("mainnet");
     * ```
     */
    getNetworkById(id: string): Network | undefined;
    /**
     * Finds a network by its ID or one of its aliases.
     *
     * @param alias - The network ID or alias (e.g. "eth" for Ethereum mainnet)
     * @returns The network if found, undefined otherwise
     *
     * @example
     * ```typescript
     * const ethereum = registry.getNetworkByAlias("eth");
     * ```
     */
    getNetworkByAlias(alias: string): Network | undefined;
    /**
     * Gets API URLs for a network, filtered by kind and with environment variables applied.
     * Environment variable placeholders in the format {VARIABLE_NAME} will be replaced with
     * actual environment variable values. URLs that reference non-existent environment
     * variables will be omitted from the result.
     *
     * @param networkId - The network ID or alias
     * @param kinds - Optional array of API URL kinds to filter by. If not provided or empty, returns all kinds
     * @returns Array of API URLs with environment variables applied
     *
     * @example
     * ```typescript
     * // Get all Etherscan API URLs
     * const etherscanUrls = registry.getApiUrls("mainnet", [APIURLKind.Etherscan]);
     *
     * // Get all API URLs for the network
     * const allUrls = registry.getApiUrls("mainnet");
     * ```
     */
    getApiUrls(networkId: string, kinds?: APIURLKind[]): string[];
    /**
     * Gets RPC URLs for a network with environment variables applied.
     * Environment variable placeholders in the format {VARIABLE_NAME} will be replaced with
     * actual environment variable values. URLs that reference non-existent environment
     * variables will be omitted from the result.
     *
     * @param networkId - The network ID or alias
     * @returns Array of RPC URLs with environment variables applied
     *
     * @example
     * ```typescript
     * // Get all RPC URLs for ethereum mainnet
     * const rpcUrls = registry.getRpcUrls("mainnet");
     * ```
     */
    getRpcUrls(networkId: string): string[];
}