Method isBuilt

packages/graph/src/indexes/IndexManager.ts:324–326

* Check if an index has been built.

(label: string, property: string)

   * Check if an index has been built.
   */
  public isBuilt(label: string, property: string): boolean {
    return this.#built.has(this.#indexKey(label, property));
  }

  /**
   * Build an index by scanning all elements.