/** @alpha */
declare const _default: import("@backstage/frontend-plugin-api").FrontendPlugin<{}, {}, {
    "api:signals": import("@backstage/frontend-plugin-api").ExtensionDefinition<{
        kind: "api";
        name: undefined;
        config: {};
        configInput: {};
        output: import("@backstage/frontend-plugin-api").ConfigurableExtensionDataRef<import("@backstage/frontend-plugin-api").AnyApiFactory, "core.api.factory", {}>;
        inputs: {};
        params: {
            factory: import("@backstage/frontend-plugin-api").AnyApiFactory;
        };
    }>;
}>;
export default _default;