逐行源码阅读中文笔记。
blog解读：https://blog.csdn.net/qq_39388410/article/details/103903631
建议阅读顺序： encoders.py-->aggregates.py-->models.py
原paper：
@inproceedings{hamilton2017inductive,
author = {Hamilton, William L. and Ying, Rex and Leskovec, Jure},
title = {Inductive Representation Learning on Large Graphs},
booktitle = {NIPS},
year = {2017}
}