/**
 * Value lerping between output states — numeric records and typed CSS values.
 *
 * Linearly interpolates numeric property records and typed {@link TypedValue}
 * unions within-kind; cross-kind interpolation is refused loudly (no 50% snap).
 *
 * @module
 */
/** A single transform function part (e.g. `translateY(24px)`). */
export interface TransformPart {
    readonly fn: string;
    readonly args: readonly TypedValue[];
}
/** Color space a {@link TypedValue} color carries its components in. */
export type ColorSpace = 'srgb' | 'oklch';
/** Typed value union — interpolate within-kind only. */
export type TypedValue = {
    readonly k: 'number';
    readonly v: number;
} | {
    readonly k: 'opacity';
    readonly v: number;
} | {
    readonly k: 'length';
    readonly v: number;
    readonly unit: 'px' | 'rem' | '%' | 'vw' | 'vh';
} | {
    readonly k: 'angle';
    readonly v: number;
    readonly unit: 'deg' | 'rad' | 'turn';
} | {
    readonly k: 'color';
    readonly space: ColorSpace;
    readonly components: readonly number[];
} | {
    readonly k: 'transform';
    readonly parts: readonly TransformPart[];
};
/**
 * Parse a pose binding value into a {@link TypedValue}. Property name informs
 * opacity/transform heuristics when the value alone is ambiguous.
 */
export declare function parseTypedBinding(key: string, value: number | string): TypedValue;
/** Format a {@link TypedValue} for CSS custom-property / style emission. */
export declare function formatTypedValue(value: TypedValue): string;
/**
 * Interpolate between two numeric records using an eased value [0..1].
 * Returns a new record with each property lerped: from[k] + (to[k] - from[k]) * eased.
 */
export declare function interpolate<T extends Record<string, number>>(from: T, to: T, eased: number, defaults?: Partial<Record<string, number>>): T;
/**
 * Interpolate two {@link TypedValue}s within-kind. Cross-kind or unit-mismatch
 * interpolation is refused loudly — holds `to` and emits a diagnostic.
 */
export declare function interpolateTyped(from: TypedValue, to: TypedValue, eased: number): TypedValue;
//# sourceMappingURL=interpolate.d.ts.map