how to redirect in flask to the same page

from flask import Flask, redirect, url_for, render_template, request

app = Flask(__name__)

@app.route('/')
def index():
    return render_template('index.html')

@app.route('/process_data', methods=['POST'])
def process_data():
    # Process form data here
    # ...

    # Redirect to the same page (index) after processing data
    return redirect(url_for('index'))

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