three.js/examples/jsm/nodes/core/FunctionNode.d.ts

import { TempNode } from './TempNode';
import { NodeBuilder } from './NodeBuilder';

export interface FunctionNodeInput {
    name: string;
    type: string;
    qualifier: string;
}

export class FunctionNode extends TempNode {
  constructor(src: string, includes?: object[], extensions?: object, keywords?: object, type?: string);

  isMethod: boolean;
  nodeType: string;
  useKeywords: boolean;

  inputs: FunctionNodeInput[] | undefined;
  includes: object[] | undefined;
  extensions: object | undefined;
  keywords: object | undefined;

  getShared(builder: NodeBuilder, output: string): boolean;
  getType(builder: NodeBuilder): string;
  getInputByName(name: string): FunctionNodeInput | undefined;
  getIncludeByName(name: string): object | undefined;
  generate(builder: NodeBuilder, output: string): string;
  parse(src: string, includes?: object[], extensions?: object, keywords?: object): void;
  copy(source: FunctionNode): this;
}