import { GraphQLResolveInfo } from 'graphql';
/**
 * Recursive map of selected GraphQL fields. Leaf fields map to an empty object;
 * fields with sub-selections map to the same shape nested.
 *
 * Example query: `{ user { id orders { code } } }` yields:
 * ```
 * { user: { id: {}, orders: { code: {} } } }
 * ```
 */
export type FieldTree = {
    [fieldName: string]: FieldTree;
};
/**
 * Walks a `GraphQLResolveInfo` and produces a nested object describing the
 * fields the client has selected on this resolver's return type.
 *
 * Vendored from `graphql-fields@2.0.3`:
 *   - Source: https://github.com/robrichard/graphql-fields
 *   - Copyright (c) 2016 Rob Richard
 *   - Licence: MIT (https://github.com/robrichard/graphql-fields/blob/master/LICENSE)
 *
 * Trimmed to the subset Vendure actually uses — the `processArguments` and
 * `excludedFields` options upstream supports are omitted because the single
 * call site (`@Relations()` decorator) never passes them.
 *
 * Supports:
 *   - direct field selections
 *   - inline fragments (`... on Type { ... }`)
 *   - named fragment spreads (`...FragmentName`)
 *   - `@skip(if: ...)` and `@include(if: ...)` directives, including those
 *     reading from `info.variableValues`
 *   - field merging when the same field appears multiple times across
 *     fragments (later occurrences extend earlier ones)
 */
export declare function graphqlFields(info: GraphQLResolveInfo): FieldTree;