import { type SdResizeEvent } from "../../core/events/sd-resize";
import * as i0 from "@angular/core";
export declare class SdCollapse {
    open: import("@angular/core").InputSignalWithTransform<boolean, unknown>;
    private readonly _contentElRef;
    contentHeight: import("@angular/core").WritableSignal<number>;
    private readonly _initialized;
    contentMarginTop: import("@angular/core").Signal<string>;
    contentTransition: import("@angular/core").Signal<"" | "margin-top 0.1s ease-out" | "margin-top 0.1s ease-in">;
    constructor();
    onContentResize(event: SdResizeEvent): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SdCollapse, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<SdCollapse, "sd-collapse", never, { "open": { "alias": "open"; "required": false; "isSignal": true; }; }, {}, never, ["*"], true, never>;
}
//# sourceMappingURL=sd-collapse.d.ts.map