如何在Python语言中使用Dash Cytoscape cola.js为每条边指定edgeLength

pip install dash
pip install dash-cytoscape

import dash
import dash_cytoscape as cyto
import dash_html_components as html
import dash_core_components as dcc

app = dash.Dash(__name__)

app.layout = html.Div([
    cyto.Cytoscape(
        id='cytoscape',
        elements=[
            # 添加节点和边的定义
        ],
        layout={
            'name': 'cola',
            'edgeLength': 'data(edgeLength)'  # 指定每条边的长度属性
        },
        style={'width': '100%', 'height': '400px'}
    )
])

elements = [
    {'data': {'id': 'node1', 'label': 'Node 1'}},
    {'data': {'id': 'node2', 'label': 'Node 2'}},
    {'data': {'id': 'edge1', 'source': 'node1', 'target': 'node2', 'edgeLength': 200}}
]

app.layout = html.Div([
    cyto.Cytoscape(
        id='cytoscape',
        elements=elements,
        layout={
            'name': 'cola',
            'edgeLength': 'data(edgeLength)'
        },
        style={'width': '100%', 'height': '400px'}
    )
])

if __name__ == '__main__':
    app.run_server(debug=True)