code: public Cluster withSubnetMapping(java.util.Map<String, String> subnetMapping) {
          setSubnetMapping(subnetMapping);
          return this;
      }
docs: <p>
  A map of the cluster's subnets and their corresponding Availability Zones.
  </p>
  
  @param subnetMapping
  A map of the cluster's subnets and their corresponding Availability Zones.
  @return Returns a reference to this object so that method calls can be chained together.