Method traverse

packages/graph/src/Steps.ts:2643–2662

(
    _source: GraphSource<any>,
    input: Iterable<unknown>,
    _context?: QueryContext,
  )

  }

  public *traverse(
    _source: GraphSource<any>,
    input: Iterable<unknown>,
    _context?: QueryContext,
  ): IterableIterator<number> {
    const { property } = this.config;
    let sum = 0;
    for (const path of input) {
      this.traversed++;
      if (path instanceof TraversalPath) {
        // If property is specified, get the property value; otherwise use the path value directly
        const value = property ? path.property(property as never) : path.value;
        if (typeof value === "number") {
          sum += value;
        }
      }
    }
    this.emitted++;
    yield sum;
  }

  public override clone(partial?: Partial<AggregateStepConfig>) {
    const { config } = this;