import { DynamicGraphNode, DynamicNodeDefinition, DynamicNodeType, GraphNode, GraphOperation, NodeData, NodeDefinition, NodeName, NodeProperties, NodeState, OperationType, SerializedNodeProperties } from '../../../types/graph';
export declare type RequestMetadata = {
    [namespace: string]: any;
};
/**
 * A definition of the `request` graph operation.
 * See the [[requestOperation]] documentation to find out more.
 */
export interface RequestOperation extends GraphOperation<'request', RequestProperties> {
}
export interface RequestProperties {
    metadata: RequestMetadata;
    next: GraphNode | undefined;
    query: NodeDefinition;
}
/**
 * An implementation of the [[requestOperation]].
 * See the [[requestOperation]] documentation to find out more.
 */
export declare const RequestOperationType: OperationType<'request', RequestProperties>;
/**
 * Creates a new instance of [[requestOperation]]. This operation is used to instruct Muster
 * to traverse the `request` operation for a given node.
 */
export declare function requestOperation(query: NodeDefinition, metadata: RequestMetadata, next?: GraphNode): RequestOperation;
export declare function isRequestOperation(value: GraphOperation): value is RequestOperation;
export declare type RequestNodeType<T extends NodeName = NodeName, P extends NodeProperties = NodeProperties, S extends NodeState = NodeState, D extends NodeData = NodeData, V extends SerializedNodeProperties = P> = DynamicNodeType<T, P, S, D, V, 'request', RequestOperation>;
export declare type RequestGraphNode<T extends NodeName = NodeName, P extends NodeProperties = NodeProperties, S extends NodeState = NodeState, D extends NodeData = NodeData, V extends SerializedNodeProperties = P> = DynamicGraphNode<T, P, S, D, V, 'request', RequestOperation, RequestNodeType<T, P, S, D, V>>;
export declare type RequestNodeDefinition<T extends NodeName = NodeName, P extends NodeProperties = NodeProperties, S extends NodeState = NodeState, D extends NodeData = NodeData, V extends SerializedNodeProperties = P> = DynamicNodeDefinition<T, P, S, D, V, 'request', RequestOperation, RequestNodeType<T, P, S, D, V>>;
export declare function supportsRequestOperation<T extends NodeName = NodeName, P extends NodeProperties = NodeProperties, S extends NodeState = NodeState, D extends NodeData = NodeData, V extends SerializedNodeProperties = P>(node: NodeDefinition): node is RequestNodeDefinition<T, P, S, D, V>;
export declare function supportsRequestOperation<T extends NodeName = NodeName, P extends NodeProperties = NodeProperties, S extends NodeState = NodeState, D extends NodeData = NodeData, V extends SerializedNodeProperties = P>(node: GraphNode): node is RequestGraphNode<T, P, S, D, V>;
export declare function supportsRequestOperation<T extends NodeName = NodeName, P extends NodeProperties = NodeProperties, S extends NodeState = NodeState, D extends NodeData = NodeData, V extends SerializedNodeProperties = P>(node: NodeDefinition | GraphNode): node is RequestNodeDefinition<T, P, S, D, V> | RequestGraphNode<T, P, S, D, V>;