import type { Maybe } from '../jsutils/Maybe';
import type { DirectiveDefinitionNode } from '../language/ast';
import { DirectiveLocation } from '../language/directiveLocation';
import type {
  GraphQLArgument,
  GraphQLFieldConfigArgumentMap,
} from './definition';
/**
 * Test if the given value is a GraphQL directive.
 */
export declare function isDirective(
  directive: unknown,
): directive is GraphQLDirective;
export declare function assertDirective(directive: unknown): GraphQLDirective;
/**
 * Custom extensions
 *
 * @remarks
 * Use a unique identifier name for your extension, for example the name of
 * your library or project. Do not use a shortened identifier as this increases
 * the risk of conflicts. We recommend you add at most one extension field,
 * an object which can contain all the values you need.
 */
export interface GraphQLDirectiveExtensions {
  [attributeName: string]: unknown;
}
/**
 * Directives are used by the GraphQL runtime as a way of modifying execution
 * behavior. Type system creators will usually not create these directly.
 */
export declare class GraphQLDirective {
  name: string;
  description: Maybe<string>;
  locations: ReadonlyArray<DirectiveLocation>;
  args: ReadonlyArray<GraphQLArgument>;
  isRepeatable: boolean;
  extensions: Readonly<GraphQLDirectiveExtensions>;
  astNode: Maybe<DirectiveDefinitionNode>;
  constructor(config: Readonly<GraphQLDirectiveConfig>);
  get [Symbol.toStringTag](): string;
  toConfig(): GraphQLDirectiveNormalizedConfig;
  toString(): string;
  toJSON(): string;
}
export interface GraphQLDirectiveConfig {
  name: string;
  description?: Maybe<string>;
  locations: ReadonlyArray<DirectiveLocation>;
  args?: Maybe<GraphQLFieldConfigArgumentMap>;
  isRepeatable?: Maybe<boolean>;
  extensions?: Maybe<Readonly<GraphQLDirectiveExtensions>>;
  astNode?: Maybe<DirectiveDefinitionNode>;
}
interface GraphQLDirectiveNormalizedConfig extends GraphQLDirectiveConfig {
  args: GraphQLFieldConfigArgumentMap;
  isRepeatable: boolean;
  extensions: Readonly<GraphQLDirectiveExtensions>;
}
/**
 * Used to conditionally include fields or fragments.
 */
export declare const GraphQLIncludeDirective: GraphQLDirective;
/**
 * Used to conditionally skip (exclude) fields or fragments.
 */
export declare const GraphQLSkipDirective: GraphQLDirective;
/**
 * Constant string used for default reason for a deprecation.
 */
export declare const DEFAULT_DEPRECATION_REASON = 'No longer supported';
/**
 * Used to declare element of a GraphQL schema as deprecated.
 */
export declare const GraphQLDeprecatedDirective: GraphQLDirective;
/**
 * Used to provide a URL for specifying the behavior of custom scalar definitions.
 */
export declare const GraphQLSpecifiedByDirective: GraphQLDirective;
/**
 * The full list of specified directives.
 */
export declare const specifiedDirectives: ReadonlyArray<GraphQLDirective>;
export declare function isSpecifiedDirective(
  directive: GraphQLDirective,
): boolean;
export {};
