def METHOD_NAME(page: Page):
	# Open the admin page 
	page.goto('http://localhost:4848')
	page.wait_for_selector('div[id="treeForm:tree_children"]')
	# Click on the option Deployment Groups in the menu
	instance_button = page.get_by_role("link",name="Deployment Groups", exact=True)
	instance_button.click()
	page.wait_for_selector('div[id="propertyForm:dgTable"]')
	# Expect the title to contain Instances
	expect(page).to_have_title("Deployment Groups")
	# Confirm the dialog window
	page.on("dialog", lambda dialog: dialog.accept())
	select_all_button = page.get_by_role("link",name="Select All", exact=True)
	select_all_button.click()
	start_button = page.get_by_role("button",name="Start Deployment Group")
	start_button.click()
	# wait for modal to appear and disappear
	page.wait_for_selector('input[value="Processing..."]')
	page.wait_for_selector('div#ajaxPanelBody')
	page.wait_for_selector('input[value="Processing..."]', timeout=1200000,state="hidden")
	page.wait_for_selector('div#ajaxPanelBody', timeout=1200000,state="hidden")
	# return to homepage
	page.goto('http://localhost:4848')