/**
 * PropertyParser constants — property-name sets used to classify and default
 * animation properties.
 */
export declare const TRANSFORM_PROPS: Set<string>;
export declare const PX_PROPS: Set<string>;
export declare const DEG_PROPS: Set<string>;
export declare const STRING_PROPS: Set<string>;
export declare const TRANSFORM_CONFIG_STRING_PROPS: Set<string>;
export declare const KEYWORD_PROPS: Set<string>;
export declare const UNITLESS_PROPS: Set<string>;
export declare const COLOR_PROPS: Set<string>;
export declare const NAMED_COLORS: Set<string>;
/**
 * Properties that support "auto" value resolution.
 * Only layout properties where the browser can compute a natural value make sense.
 */
export declare const AUTO_PROPS: Set<string>;