For Redis caching where is the config can i set my certificate path?

New to Redis, apologies if i am not understanding

the redis application i need to connect to requires SSL
```c#
private static IServiceCollection RegisterRedisCache(this IServiceCollection services, IConfiguration configuration)
{
_ = services.AddEasyCaching(options =>
{
Action easycaching = x =>
{
x.NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore;
x.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
};
_ = options.WithJson(easycaching, "MY_INSTANCE");

options.UseRedis(config =>
{
config.DBConfig = new RedisDBOptions
{
Username = "username",
Password = "password",
IsSsl = true,
SslHost = "hosturl here",
ConnectionTimeout = 5000,
Database = 0,
};
config.DBConfig.Endpoints.Add(new ServerEndPoint("host url here", port here));
config.EnableLogging = true;
}, "MY_INSTANCE");
});
return services;
}
```

but they say this

The SSL encryption for your database connection is enabled by default. The CA Certificate is required for connection.

please can someone explain to me how to add my certificate