import type { OpenAPIModel, SpecificationExtensionsModel, TreeNodeModel } from './types';
import type { Disposable, JSONValue } from '@fresha/api-tools-core';
export interface TreeParent {
    readonly root: OpenAPIModel;
}
export declare class BasicNode<TParent extends TreeParent> implements TreeNodeModel<TParent>, Disposable, SpecificationExtensionsModel {
    #private;
    constructor(parent: TParent);
    get root(): OpenAPIModel;
    get parent(): TParent;
    dispose(): void;
    get extensionCount(): number;
    extensionKeys(): IterableIterator<string>;
    extensions(): IterableIterator<[string, JSONValue]>;
    hasExtension(key: string): boolean;
    getExtension(key: string): JSONValue | undefined;
    getExtensionOrThrow(key: string): JSONValue;
    setExtension(key: string, value: JSONValue): void;
    deleteExtension(key: string): void;
    clearExtensions(): void;
}
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