Testcafe - Fresh browser session is launched for each test in a fixture. How can we avoid this

I have a scenario which is an end to end testing.

test1 - Add a setup

test2 - Generate template for the data

test3 - Link Github to the setup

test4 - perform some actions in Github and validate data

I created a fixture with test1, test2, test3, and test4. But observed that fresh browser session is launched for each test. How can I continue my testing from test1 to test4 without interrupting the browser session