import { GraphNode, NodeDefinition } from '../../../types/graph';
import { InitableGraphNode, InitableNodeDefinition } from '../operations/init';
import { ResultableGraphNode, ResultableNodeDefinition } from '../operations/result';
import { SteppableGraphNode, SteppableNodeDefinition } from '../operations/step';
export declare type TransformerGraphNode = InitableGraphNode | SteppableGraphNode | ResultableGraphNode;
export declare type TransformerNodeDefinition = InitableNodeDefinition | SteppableNodeDefinition | ResultableNodeDefinition;
export default function isTransformer(value: NodeDefinition): value is TransformerNodeDefinition;
export default function isTransformer(value: GraphNode): value is TransformerGraphNode;
export default function isTransformer(value: GraphNode | NodeDefinition): value is TransformerGraphNode | TransformerNodeDefinition;