import { GraphQLOutputType, GraphQLType } from 'graphql/type/definition.js';
import { Source } from 'graphql/language/index.js';
import { GraphQLSchema } from 'graphql/type/index.js';
export type Variable = {
    name: string;
    type: GraphQLType | undefined;
    required: boolean;
};
export type Selector = {
    name: string;
    type?: GraphQLOutputType;
    fields: Selector[];
    inlineFragments: Selector[];
    variables?: Variable[];
    isFragment?: boolean;
    source?: string;
};
export type Content = {
    operations: Selector[];
    fragments: Map<string, Selector>;
};
export declare function traverse(schema: GraphQLSchema, source: Source): Content;