import { DspGraph } from './types';
export declare const getNode: (graph: DspGraph.Graph, nodeId: DspGraph.NodeId) => DspGraph.Node;
export declare const getInlet: (node: DspGraph.Node, inletId: DspGraph.PortletId) => DspGraph.Portlet;
export declare const getOutlet: (node: DspGraph.Node, outletId: DspGraph.PortletId) => DspGraph.Portlet;
/** Returns the list of sinks for the outlet or an empty list. */
export declare const getSinks: (node: DspGraph.Node, outletId: DspGraph.PortletId) => ReadonlyArray<DspGraph.ConnectionEndpoint>;
/** Returns the list of sources for the inlet or an empty list. */
export declare const getSources: (node: DspGraph.Node, inletId: DspGraph.PortletId) => ReadonlyArray<DspGraph.ConnectionEndpoint>;