import type { ValueType } from './value-type';
/**
 * Claim properties for a descriptor - the extension point for @underlying/color,
 * @underlying/scroll, and app code. Call it from explicit user code only, never
 * from a module's import side effects (a sideEffects:false bundler would drop
 * the registration). Later registrations win for groups created afterwards;
 * a live group keeps the descriptor it was created with.
 */
export declare function registerValueType(properties: readonly string[], type: ValueType): void;
/** Resolve a property to its value type. Unknown and custom (--*) properties fall back to complex. */
export declare function resolveValueType(property: string): ValueType;
/** Test-only: whether the built-in seeds have been installed yet. */
export declare function __isSeeded(): boolean;
/** Test-only: clears all registrations and the seed flag. */
export declare function __resetRegistry(): void;
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