/** Text-alignment variants — opt-in modifiers any prose component can mix in via `getAlignClass()`. */
export interface AlignVariants {
    /** Align text to the start of the line (LTR: left). */
    left?: boolean | undefined;
    /** Centre text horizontally. */
    center?: boolean | undefined;
    /** Align text to the end of the line (LTR: right). */
    right?: boolean | undefined;
}
/** Possible alignment strings. */
export type Align = keyof AlignVariants;
/** Get the alignment class for a component. */
export declare function getAlignClass(align: Align | AlignVariants): string | undefined;