@antv/g2/esm/api/library.d.ts

the Grammar of Graphics in Javascript

import { G2ComponentNamespaces, G2Component } from '../runtime';
import { type SymbolFactor } from '../utils/marker';
export declare const library: {};
export declare function register(key: `${G2ComponentNamespaces | 'symbol'}.${any}`, component: G2Component | SymbolFactor): void;