export interface GraphQLConfig {
    apiUrl: string;
    authorizationKey?: string;
    headers?: Record<string, string>;
}
export interface EventTableData {
    block_height: string;
    data: string;
    epoch: string;
    event_name: string;
    timestamp: string;
    version: string;
}
export interface GraphQLResponse<T> {
    data: T;
    errors?: any[];
}
export interface EventsQueryResponse {
    event_table: EventTableData[];
}
export declare class GraphQLClient {
    private client;
    private config;
    constructor(config: GraphQLConfig);
    /**
     * Execute a GraphQL query
     */
    query<T = any>(query: string, variables?: Record<string, any>): Promise<GraphQLResponse<T>>;
    /**
     * Get events with pagination
     */
    getEvents(version?: string, limit?: number): Promise<EventTableData[]>;
    /**
     * Get events with custom query
     */
    getEventsWithCustomQuery(query: string, variables?: Record<string, any>): Promise<any>;
    /**
     * Update the configuration
     */
    updateConfig(newConfig: Partial<GraphQLConfig>): void;
    /**
     * Get current configuration
     */
    getConfig(): GraphQLConfig;
}