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Link to get back to Flask app from Dash app

Im trying integrate dash app inside flask, and basically what I need to achieve now is get link to home page working inside dash app.
My code:

from flask import Flask, render_template, redirect
import dash
import dash_html_components as html
import dash_core_components as dcc

server = Flask(__name__)

def index():
    return render_template('index.html')

def login():
    return render_template('login.html')

def dashboard():
    return redirect('/dash')

app = dash.Dash(
app.layout = html.Div([dcc.Link('Home', href=''),])

if __name__ == '__main__':

When I simply refresh page it returns to home page of flask, but I cant get it working with link click.
Any ideas how should do that? I understand that this is related to switch from Flask to Dash object, but I cant figure it out how to reverse it when I click link.