import { NodeDefinition, NodeLike, StaticGraphNode, StaticNodeDefinition, StaticNodeType } from '../../types/graph';
import { KeyNodeDefinition } from './key';
/**
 * An instance of the [[isPending]] node.
 * See the [[isPending]] documentation to find out more.
 */
export interface IsPendingNode extends StaticGraphNode<'isPending', IsPendingNodeProperties> {
}
/**
 * A definition of the [[isPending]] node.
 * See the [[isPending]] documentation to find out more.
 */
export interface IsPendingNodeDefinition extends StaticNodeDefinition<'isPending', IsPendingNodeProperties> {
}
export interface IsPendingNodeProperties {
    target: KeyNodeDefinition;
}
/**
 * The implementation of the [[isPending]] node.
 * See the [[isPending]] documentation page to learn more.
 */
export declare const IsPendingNodeType: StaticNodeType<'isPending', IsPendingNodeProperties>;
/**
 * Creates a new instance of a [[isPending]] node, which is a type of a [[NodeDefinition]] used as part of
 * a [[query]] to check if a given target is loading at a given moment.
 * See the **Check if deferred part of the query is loading** example from the [[query]] documentation to learn more.
 */
export declare function isPending(target: KeyNodeDefinition | NodeLike): IsPendingNodeDefinition;
export declare function isIsPendingNodeDefinition(value: NodeDefinition): value is IsPendingNodeDefinition;