import { DirectiveType } from '../../types';
import { AbstractMultiValueDirective } from '../abstract-multi-value-directive';
export declare type PluginTypeSource = string;
export declare class PluginTypes extends AbstractMultiValueDirective<PluginTypeSource> {
    getDirectiveName(): string;
    getDirectiveType(): DirectiveType;
    getMinimumCspVersion(): number;
}