/**
 * Breakpoint width (in pixels) for ToggleButtons responsive layout.
 *
 * Below this width, toggle buttons stack vertically in a single column.
 * Above this width, toggle buttons are laid out horizontally in a row.
 *
 * **Note:** This breakpoint only applies to non-iconOnly layouts. When `iconOnly` is true,
 * buttons are always displayed in a horizontal inline layout regardless of container width.
 */
export declare const WIDTH_COMPACT_ORIENTATION = 640;
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