topology_description:
  type: LoadBalanced
  servers:
  - &1
    address: g:27017
    avg_rtt_ms: 0
    type: LoadBalancer
operation: read
read_preference:
  mode: PrimaryPreferred
  tag_sets:
  - data_center: nyc
suitable_servers:
- *1
in_latency_window:
- *1
