export declare const ECO_ISLAND_HOST_ATTRIBUTE = "data-eco-island";
export declare const ECO_ISLAND_INTEGRATION_ATTRIBUTE = "data-eco-island-integration";
export declare const ECO_ISLAND_COMPONENT_ID_ATTRIBUTE = "data-eco-component-id";
export declare const ECO_ISLAND_COMPONENT_KEY_ATTRIBUTE = "data-eco-component-key";
export declare const ECO_ISLAND_PROPS_ATTRIBUTE = "data-eco-props";
export type IslandHostAttributesInput = {
    integrationName: string;
    componentInstanceId: string;
    componentKey?: string;
    props?: Record<string, unknown>;
    existing?: Record<string, string>;
};
/**
 * @remarks Presence marker for hydratable component hosts, similar in spirit to Astro's `astro-island`.
 */
export declare function mergeIslandHostAttributes(input: {
    integrationName: string;
    componentInstanceId: string;
    existing?: Record<string, string>;
}): Record<string, string>;
export declare function buildIslandHostAttributes(input: IslandHostAttributesInput): Record<string, string>;
export declare function isIslandHostElement(element: Element): boolean;
export declare function componentRenderHasIslandBootstrap(assets: Array<{
    kind: string;
}> | undefined): boolean;
export declare function finalizeIslandComponentRender<T extends {
    canAttachAttributes: boolean;
    integrationName: string;
    rootAttributes?: Record<string, string>;
    assets?: Array<{
        kind: string;
    }>;
}>(input: {
    integrationContext?: {
        componentInstanceId?: string;
    };
}, result: T): T;