def METHOD_NAME():
	"""Send welcome email to sites created in last 15 minutes."""
	welcome_drips = frappe.db.get_all(
		"Drip Email", {"email_type": "Sign Up", "enabled": 1}, pluck="name"
	)
	for drip in welcome_drips:
		welcome_email = frappe.get_doc("Drip Email", drip)
		_15_mins_ago = frappe.utils.add_to_date(None, minutes=-15)
		tuples = frappe.db.sql(
			f"""
				SELECT
					site.name
				FROM
					tabSite site
				JOIN
					`tabAccount Request` account_request
				ON
					site.account_request = account_request.name
				WHERE
					site.status = "Active" and
					site.standby_for = "{welcome_email.saas_app}" and
					account_request.creation > "{_15_mins_ago}"
			"""
		)
		sites_in_last_15_mins = [t[0] for t in tuples]
		for site in sites_in_last_15_mins:
			welcome_email.send(site)