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// FIXME/* eslint-disable import/no-cycle */
import Maybe from '../tsutils/Maybe.d.ts';
import { SchemaDefinitionNode, SchemaExtensionNode } from '../language/ast.d.ts';
import { GraphQLDirective } from './directives.d.ts';import {  GraphQLNamedType,  GraphQLAbstractType,  GraphQLObjectType,  GraphQLInterfaceType,} from './definition.d.ts';
/** * Test if the given value is a GraphQL schema. */export function isSchema(schema: any): schema is GraphQLSchema;export function assertSchema(schema: any): GraphQLSchema;
/** * Schema Definition * * A Schema is created by supplying the root types of each type of operation, * query and mutation (optional). A schema definition is then supplied to the * validator and executor. * * Example: * *     const MyAppSchema = new GraphQLSchema({ *       query: MyAppQueryRootType, *       mutation: MyAppMutationRootType, *     }) * * Note: If an array of `directives` are provided to GraphQLSchema, that will be * the exact list of directives represented and allowed. If `directives` is not * provided then a default set of the specified directives (e.g. @include and * @skip) will be used. If you wish to provide *additional* directives to these * specified directives, you must explicitly declare them. Example: * *     const MyAppSchema = new GraphQLSchema({ *       ... *       directives: specifiedDirectives.concat([ myCustomDirective ]), *     }) * */export class GraphQLSchema {  description: Maybe<string>;  extensions: Maybe<Readonly<Record<string, any>>>;  astNode: Maybe<SchemaDefinitionNode>;  extensionASTNodes: Maybe<ReadonlyArray<SchemaExtensionNode>>;
  constructor(config: Readonly<GraphQLSchemaConfig>);  getQueryType(): Maybe<GraphQLObjectType>;  getMutationType(): Maybe<GraphQLObjectType>;  getSubscriptionType(): Maybe<GraphQLObjectType>;  getTypeMap(): TypeMap;  getType(name: string): Maybe<GraphQLNamedType>;
  getPossibleTypes(    abstractType: GraphQLAbstractType,  ): ReadonlyArray<GraphQLObjectType>;
  getImplementations(    interfaceType: GraphQLInterfaceType,  ): InterfaceImplementations;
  // @deprecated: use isSubType instead - will be removed in v16.  isPossibleType(    abstractType: GraphQLAbstractType,    possibleType: GraphQLObjectType,  ): boolean;
  isSubType(    abstractType: GraphQLAbstractType,    maybeSubType: GraphQLNamedType,  ): boolean;
  getDirectives(): ReadonlyArray<GraphQLDirective>;  getDirective(name: string): Maybe<GraphQLDirective>;
  toConfig(): GraphQLSchemaConfig & {    types: Array<GraphQLNamedType>;    directives: Array<GraphQLDirective>;    extensions: Maybe<Readonly<Record<string, any>>>;    extensionASTNodes: ReadonlyArray<SchemaExtensionNode>;    assumeValid: boolean;  };}
type TypeMap = { [key: string]: GraphQLNamedType };
type InterfaceImplementations = {  objects: ReadonlyArray<GraphQLObjectType>;  interfaces: ReadonlyArray<GraphQLInterfaceType>;};
export interface GraphQLSchemaValidationOptions {  /**   * When building a schema from a GraphQL service's introspection result, it   * might be safe to assume the schema is valid. Set to true to assume the   * produced schema is valid.   *   * Default: false   */  assumeValid?: boolean;}
export interface GraphQLSchemaConfig extends GraphQLSchemaValidationOptions {  description?: Maybe<string>;  query: Maybe<GraphQLObjectType>;  mutation?: Maybe<GraphQLObjectType>;  subscription?: Maybe<GraphQLObjectType>;  types?: Maybe<Array<GraphQLNamedType>>;  directives?: Maybe<Array<GraphQLDirective>>;  extensions?: Maybe<Readonly<Record<string, any>>>;  astNode?: Maybe<SchemaDefinitionNode>;  extensionASTNodes?: Maybe<ReadonlyArray<SchemaExtensionNode>>;}
/** * @internal */export interface GraphQLSchemaNormalizedConfig extends GraphQLSchemaConfig {  description: Maybe<string>;  types: Array<GraphQLNamedType>;  directives: Array<GraphQLDirective>;  extensions: Maybe<Readonly<Record<string, any>>>;  extensionASTNodes: Maybe<ReadonlyArray<SchemaExtensionNode>>;  assumeValid: boolean;}