change redis timeout with puppet - redis

Question

I have a virtual machine which gets redis installed using vagrant/puppet. How can I override/configure redis timeout setting?
Trying
class { 'redis':
version => '2.6.5',
redis_timeout => 0
}
gives me
Invalid parameter redis_timeout at /tmp/vagrant-puppet/manifests/default.pp:308 on node precise64
I mention that I do not want two intances (one of them having the right timeout)...
redis::instance { 'redis-6900':
redis_port => '6900',
redis_timeout => 0,
}
... or changing the original configuration params file from the module
# == Class: redis::params
#
# Redis params.
#
# === Parameters
#
# === Authors
#
# Thomas Van Doren
#
# === Copyright
#
# Copyright 2012 Thomas Van Doren, unless otherwise noted.
#
class redis::params {
$redis_port = '6379'
$redis_bind_address = false
$version = '2.4.13'
$redis_src_dir = '/opt/redis-src'
$redis_bin_dir = '/opt/redis'
$redis_max_memory = '4gb'
$redis_max_clients = false
$redis_timeout = 0 # 0 = disabled
$redis_loglevel = 'notice'
$redis_databases = 16
$redis_slowlog_log_slower_than = 10000 # microseconds
$redis_slowlog_max_len = 1024
$redis_password = false
}