import { NodeDefinition, StaticGraphNode, StaticNodeDefinition, StaticNodeType } from '../../types/graph';
import { CatchErrorNodeDefinition } from './catch-error';
import { CreateCallerNodeDefinition } from './create-caller';
import { CreateSetterNodeDefinition } from './create-setter';
import { DeferNodeDefinition } from './defer';
import { EntriesNodeDefinition } from './entries';
import { IsPendingNodeDefinition } from './is-pending';
import { KeyNodeDefinition } from './key';
import { WithTransformsNodeDefinition } from './with-transforms';
export declare type ChildKeyDefinition = KeyNodeDefinition | DeferNodeDefinition | IsPendingNodeDefinition | CreateSetterNodeDefinition | CreateCallerNodeDefinition | CatchErrorNodeDefinition;
export declare type FieldSetDefinition = {
    [id: string]: FieldDefinition;
};
export declare type FieldDefinition = true | FieldsNodeDefinition | EntriesNodeDefinition | WithTransformsNodeDefinition | KeyNodeDefinition | DeferNodeDefinition | IsPendingNodeDefinition | CreateSetterNodeDefinition | CreateCallerNodeDefinition | FieldSetDefinition | CatchErrorNodeDefinition;
export interface FieldsNodeProperties {
    fields: {
        [id: string]: ChildKeyDefinition;
    };
}
export interface SerializedFieldsNodeProperties<T = any> {
    fields: {
        [id: string]: T;
    };
}
/**
 * An instance of the [[fields]] node.
 * See the [[fields]] documentation to find out more.
 */
export interface FieldsNode extends StaticGraphNode<'fields', FieldsNodeProperties, SerializedFieldsNodeProperties> {
}
/**
 * A definition of the [[fields]] node.
 * See the [[fields]] documentation to find out more.
 */
export interface FieldsNodeDefinition extends StaticNodeDefinition<'fields', FieldsNodeProperties, SerializedFieldsNodeProperties> {
}
/**
 * The implementation of the [[fields]] node.
 * See the [[fields]] documentation to learn more.
 */
export declare const FieldsNodeType: StaticNodeType<'fields', FieldsNodeProperties, SerializedFieldsNodeProperties>;
/**
 * Creates a new instance of a [[fields]] node, which is a type of a [[NodeDefinition]] used inside of
 * a [[query]] to represent a nested graph structures. It serves as a container for a following graph nodes:
 * - [key](_nodes_graph_key_.html#key)
 * - [[defer]]
 * - [[isPending]]
 * - [[createCaller]]
 * - [[createSetter]]
 *
 * Muster is performing implicit conversion to this node type every time a query or a key node with
 * fields is created.
 *
 *
 * @example **Implicit conversion in [[query]]**
 * ```js
 * import { fields, key, query, root } from '@dws/muster';
 *
 * query(root(), {
 *   firstName: key('firstName'),
 *   lastName: key('lastName'),
 * });
 * // is equivalent to
 * query(root(), fields({
 *   firstName: key('firstName'),
 *   lastName: key('lastName'),
 * }));
 * ```
 * This example shows how Muster implicitly converts an object to a [[fields]] when creating
 * a [[query]] with child fields.
 *
 *
 * @example **Implicit conversion in [key](_nodes_graph_key_.html#key)**
 * ```js
 * import { fields, key } from '@dws/muster';
 *
 * key('someKey', {
 *   firstName: key('firstName'),
 *   lastName: key('lastName'),
 * });
 * // is equivalent to
 * key('someKey', fields({
 *   firstName: key('firstName'),
 *   lastName: key('lastName'),
 * }));
 * ```
 * This example shows how Muster implicitly converts an object to a [[fields]] when creating
 * a [key](_nodes_graph_key_.html#key) with child fields.
 *
 *
 * @example **Implicit conversion in [[entries]]**
 * ```js
 * import { fields, key, entries } from '@dws/muster';
 *
 * entries({
 *   firstName: key('firstName'),
 *   lastName: key('lastName'),
 * });
 * // is equivalent to
 * entries(fields({
 *   firstName: key('firstName'),
 *   lastName: key('lastName'),
 * }));
 * ```
 * This example shows how Muster implicitly converts an object to a [[fields]] when creating
 * an [[entries]] with child fields.
 */
export declare function fields(fieldSet: FieldSetDefinition): FieldsNodeDefinition;
export declare function isFieldsNodeDefinition(value: NodeDefinition): value is FieldsNodeDefinition;