How to put environment variable in UWSGI config

[uwsgi]
env = RAY_REDIS_PASS=ray_pass
env = RAY_REDIS_PORT=6380
strict = true
chdir = /Users/judas/projects/myapp
master-fifo = /tmp/myapp_fifo0
master-fifo = /tmp/myapp_fifo1
module = myapp.wsgi:application
master = true
vacuum = true
need-app = true
processes = 4
die-on-term = true
procname-prefix = myapp
harakiri = 30
socket = /tmp/myapp_uwsgi.sock
lazy-apps = true
logger = file:logfile=/tmp/apps.log,maxsize=2000000000
import = postfork

RAY_REDIS_PASS, RAY_REDIS_PORT are env variable you want to pass to each worker process