如何让Networkx在两个方向的边上显示两个权重？

import networkx as nx
import matplotlib.pyplot as plt

# 创建一个有向图
G = nx.DiGraph()

# 添加带有权重属性的边
G.add_edge('A', 'B', weight1=0.5, weight2=0.8)
G.add_edge('B', 'A', weight1=0.3, weight2=0.6)

# 获取边的权重属性
weight1 = G['A']['B']['weight1']
weight2 = G['B']['A']['weight2']

# 绘制图形
pos = nx.spring_layout(G)
nx.draw_networkx(G, pos)

# 绘制带有权重标签的边
labels = nx.get_edge_attributes(G, 'weight1')
nx.draw_networkx_edge_labels(G, pos, edge_labels=labels)

labels = nx.get_edge_attributes(G, 'weight2')
nx.draw_networkx_edge_labels(G, pos, edge_labels=labels, label_pos=0.3)

plt.show()