export declare const PRESETS: {
    'instagram-grid': {
        canvas: {
            width: number;
            height: number;
            columns: number;
            rows: number;
        };
        slots: {
            col: number;
            row: number;
            colSpan: number;
            rowSpan: number;
        }[];
    };
    'dashboard-shot': {
        canvas: {
            width: number;
            height: number;
            columns: number;
            rows: number;
        };
        slots: {
            col: number;
            row: number;
            colSpan: number;
            rowSpan: number;
        }[];
    };
    'horizontal-book-spread': {
        canvas: {
            width: number;
            height: number;
            columns: number;
            rows: number;
        };
        slots: {
            col: number;
            row: number;
            colSpan: number;
            rowSpan: number;
        }[];
    };
    'vertical-book-spread': {
        canvas: {
            width: number;
            height: number;
            columns: number;
            rows: number;
        };
        slots: {
            col: number;
            row: number;
            colSpan: number;
            rowSpan: number;
        }[];
    };
    'art-gallery': {
        canvas: {
            width: number;
            height: number;
            columns: number;
            rows: number;
        };
        slots: {
            col: number;
            row: number;
            colSpan: number;
            rowSpan: number;
        }[];
    };
};
export declare const isValidPreset: (presetId: string) => boolean;