import type { UiSchemaAttributeRegistry } from "../attribute-registry.js";
import type { UiSchemaObject } from "../types.js";
export declare class UiCustomAttributeCollection {
    private readonly registry;
    private readonly values;
    constructor(registry?: UiSchemaAttributeRegistry);
    get(name: string): unknown;
    set(name: string, value: unknown): this;
    delete(name: string): boolean;
    applyFrom(json: UiSchemaObject): void;
    writeTo(json: UiSchemaObject): void;
    clone(registry?: UiSchemaAttributeRegistry): UiCustomAttributeCollection;
}
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