将图形的Plotly Dash回调数组输出到布局中的单个Div？

import dash
from dash import dcc, html
from dash.dependencies import Input, Output
import plotly.graph_objs as go

app = dash.Dash(__name__)

app.layout = html.Div([
    dcc.Dropdown(
        id='dropdown',
        options=[
            {'label': 'Line', 'value': 'line'},
            {'label': 'Bar', 'value': 'bar'},
            {'label': 'Scatter', 'value': 'scatter'}
        ],
        value='line'
    ),
    html.Div(id='graphs')
])

@app.callback(
    Output('graphs', 'children'),
    [Input('dropdown', 'value')]
)
def update_graphs(selected_chart):
    if selected_chart == 'line':
        fig1 = go.Figure(data=[go.Scatter(x=[1, 2, 3], y=[4, 5, 6])])
        fig2 = go.Figure(data=[go.Scatter(x=[1, 2, 3], y=[6, 5, 4])])
    elif selected_chart == 'bar':
        fig1 = go.Figure(data=[go.Bar(x=[1, 2, 3], y=[4, 5, 6])])
        fig2 = go.Figure(data=[go.Bar(x=[1, 2, 3], y=[6, 5, 4])])
    elif selected_chart == 'scatter':
        fig1 = go.Figure(data=[go.Scatter(x=[1, 2, 3], y=[4, 5, 6], mode='markers')])
        fig2 = go.Figure(data=[go.Scatter(x=[1, 2, 3], y=[6, 5, 4], mode='markers')])
    
    return [
        dcc.Graph(figure=fig1),
        dcc.Graph(figure=fig2)
    ]

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