import { ElementRef } from "@angular/core";
import * as i0 from "@angular/core";
export declare class SdCollapseControl {
    open: import("@angular/core").InputSignalWithTransform<boolean, boolean | "" | undefined>;
    contentElRef: import("@angular/core").Signal<ElementRef<HTMLElement>>;
    contentHeight: import("../../../core/utils/bindings/$signal").SdWritableSignal<number>;
    marginTop: import("@angular/core").Signal<string>;
    constructor();
    onContentResize(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SdCollapseControl, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<SdCollapseControl, "sd-collapse", never, { "open": { "alias": "open"; "required": false; "isSignal": true; }; }, {}, never, ["*"], true, never>;
}