import { Ref, UnwrapNestedRefs } from 'vue';
/**
 * Creates a reactive local model with optional transformation and validation logic.
 *
 * @template T The type of the model's value.
 *
 * @param model - A `Ref` representing the underlying value.
 * @param options - Optional configuration for validation and parsing.
 * @param options.update - A function that takes the transformed value and returns `true` if it should be applied to the model, or `false` to keep it in a cached state.
 * @param options.parse - A function that takes the input value and returns a transformed value of type `T`. If omitted, the value is used as-is.
 *
 * @returns A reactive object with the following properties:
 * - `value`: A computed property for getting and setting the model value.
 * - `error`: A `Ref<string | undefined>` containing the last error message, if any.
 * - `reset`: A method to clear the cached value and error state.
 *
 * ### Example
 * ```ts
 * import { ref } from 'vue';
 * import { useTransformedModel } from './useTransformedModel';
 *
 * const model = ref<number>(42);
 *
 * const transformedModel = useTransformedModel(model, {
 *   parse: (value) => {
 *     const parsed = Number(value);
 *     if (!Number.isFinite(parsed)) throw new Error('Invalid number');
 *     return parsed;
 *   },
 *   update: (value) => value >= 0, // Only allow non-negative numbers
 * });
 */
export declare function useTransformedModel<T>(model: Ref<T>, options: {
    update?: (v: T) => boolean;
    parse?: (v: unknown) => T;
}): UnwrapNestedRefs<{
    value: T;
    error?: string;
    reset: () => void;
}>;
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