import { IncrementalEntityProvider, IncrementalEntityProviderOptions } from '@backstage/plugin-catalog-backend-module-incremental-ingestion';
/**
 * @alpha
 * Interface for {@link incrementalIngestionProvidersExtensionPoint}.
 */
export interface IncrementalIngestionProviderExtensionPoint {
    /** Adds a new incremental entity provider */
    addProvider<TCursor, TContext>(config: {
        options: IncrementalEntityProviderOptions;
        provider: IncrementalEntityProvider<TCursor, TContext>;
    }): void;
}
/**
 * @alpha
 *
 * Extension point for registering incremental ingestion providers.
 * The `catalogModuleIncrementalIngestionEntityProvider` must be installed for these providers to work.
 *
 * @example
 *
 * ```ts
 * backend.add(createBackendModule({
 *   pluginId: 'catalog',
 *   moduleId: 'my-incremental-provider',
 *   register(env) {
 *     env.registerInit({
 *       deps: {
 *         extension: incrementalIngestionProvidersExtensionPoint,
 *       },
 *       async init({ extension }) {
 *         extension.addProvider({
 *           burstInterval: ...,
 *           burstLength: ...,
 *           restLength: ...,
 *         }, {
 *           next(context, cursor) {
 *             ...
 *           },
 *           ...
 *         })
 *       })
 *     })
 *   }
 * }))
 * ```
 */
export declare const incrementalIngestionProvidersExtensionPoint: import("@backstage/backend-plugin-api").ExtensionPoint<IncrementalIngestionProviderExtensionPoint>;
/**
 * Registers the incremental entity provider with the catalog processing extension point.
 *
 * @alpha
 */
export declare const catalogModuleIncrementalIngestionEntityProvider: () => import("@backstage/backend-plugin-api").BackendFeature;