import SparnaturalComponent from "./sparnatural/components/SparnaturalComponent";
import { SparnaturalQueryIfc } from "./sparnatural/SparnaturalQueryIfc";
import { SparnaturalQuery } from "./sparnatural/SparnaturalQueryIfc-v13";
import { SparnaturalAttributes } from "./SparnaturalAttributes";
export declare class SparnaturalElement extends HTMLElement {
    static HTML_ELEMENT_NAME: string;
    static EVENT_SUBMIT: string;
    static EVENT_QUERY_UPDATED: string;
    static EVENT_RESET: string;
    static EVENT_INIT: string;
    _attributes: SparnaturalAttributes;
    sparnatural: SparnaturalComponent;
    constructor();
    /**
     * Call display only in the connectedCallback
     */
    connectedCallback(): void;
    set customization(customization: any);
    get customization(): any;
    display(): void;
    /**
     * Expands the SPARQL query according to the configuration.
     * Can be called from the outside
     * @returns
     */
    expandSparql(query: string): string;
    static get observedAttributes(): string[];
    attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void;
    /**
     * Enable the play button when a query has finished executing
     * Can be called from the outside. Removes the loading spinner on the btn
     */
    enablePlayBtn(): void;
    /**
     * Disable the play button when query is triggered
     * Can be called from the outside
     */
    disablePlayBtn(): void;
    /**
     * Type guard to check if the provided query is a v13 SparnaturalQuery
     * @param query The query to check
     * @returns True if the query is a SparnaturalQuery (v13), false if it's a SparnaturalQueryIfc (v1)
     */
    private isV13Query;
    /**
     * Load a saved/predefined query in the visual query builder
     * Can be called from the outside
     * @param query
     */
    loadQuery(query: SparnaturalQuery | SparnaturalQueryIfc): void;
    /**
     * Executes the provided SPARQL query, using the configured headers, and sending it to multiple
     * endpoints, if configured through the catalog attribute (results are then merged in a single result set)
     * @param query The SPARQL query to execute
     * @param callback The callback to execute with the final query string
     * @param errorCallback The callback to execute in case of an error during the query execution
     */
    executeSparql(query: string, callback: (data: any) => void, errorCallback?: (error: any) => void): void;
    /**
     * Clears the current query.
     * Can be called from the outside
     */
    clear(): void;
}