```ruby

default[:tilecache][:tile_parent] = "parent.tile.openstreetmap.org"
default[:tilecache][:tile_siblings] = []

# Per IP bucket refill rate
default[:tilecache][:ip_bucket_refill] = "4096"
# Per IP bucket size
default[:tilecache][:ip_bucket_size] = "67108864"
# Per Class C refill rate
default[:tilecache][:net_bucket_refill] = "8192"
# Per Class C bucket size
default[:tilecache][:net_bucket_size] = "134217728"

default[:tilecache][:ssl][:certificate] = "tile.openstreetmap"
```

Use numbers for numeric attributes
user
```ruby

default[:tilecache][:tile_parent] = "parent.tile.openstreetmap.org"
default[:tilecache][:tile_siblings] = []

# Per IP bucket refill rate
default[:tilecache][:ip_bucket_refill] = 4096
# Per IP bucket size
default[:tilecache][:ip_bucket_size] = 67108864
# Per Class C refill rate
default[:tilecache][:net_bucket_refill] = 8192
# Per Class C bucket size
default[:tilecache][:net_bucket_size] = 134217728

default[:tilecache][:ssl][:certificate] = "tile.openstreetmap"
```
assistant