import type { ReactiveController, ReactiveControllerHost } from 'lit';
/**
 * ResizeController — auto-resizes a textarea element based on its content.
 *
 * Used in: loquix-prompt-input (auto-expand textarea)
 */
export declare class ResizeController implements ReactiveController {
    private host;
    private _textarea;
    private _minRows;
    private _maxRows;
    constructor(host: ReactiveControllerHost & HTMLElement, options?: {
        minRows?: number;
        maxRows?: number;
    });
    hostConnected(): void;
    hostDisconnected(): void;
    /** Attach to a textarea element */
    attach(textarea: HTMLTextAreaElement): void;
    detach(): void;
    /** Trigger a resize calculation */
    resize(): void;
    private _onInput;
}
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