import { GraphQLObjectType, GraphQLSchema, OperationTypeNode } from 'graphql';
export declare function getDefinedRootType(schema: GraphQLSchema, operation: OperationTypeNode): GraphQLObjectType;
export declare function getRootTypeNames(schema: GraphQLSchema): Set<string>;
export declare function getRootTypes(schema: GraphQLSchema): Set<GraphQLObjectType>;
export declare function getRootTypeMap(schema: GraphQLSchema): Map<OperationTypeNode, GraphQLObjectType>;
