import type { EnumValueNode } from 'graphql/language';
import type { IConvertContext } from '../../IConvertContext';
import type { IConvertSettings } from '../../IConvertSettings';
import type { Util } from '../../Util';
import type { IValueNodeHandlerOutput } from './NodeValueHandlerAdapter';
import { NodeValueHandlerAdapter } from './NodeValueHandlerAdapter';
/**
 * Converts GraphQL enums to RDF named nodes.
 */
export declare class NodeValueHandlerEnum extends NodeValueHandlerAdapter<EnumValueNode> {
    constructor(util: Util, settings: IConvertSettings);
    handle(valueNode: EnumValueNode, fieldName: string, convertContext: IConvertContext): IValueNodeHandlerOutput;
}