public Builder mergeSubnet(com.google.cloud.vpcaccess.v1.Connector.Subnet value) {
      if (subnetBuilder_ == null) {
        if (((bitField0_ & 0x00000080) != 0)
            && subnet_ != null
            && subnet_ != com.google.cloud.vpcaccess.v1.Connector.Subnet.getDefaultInstance()) {
          getSubnetBuilder().mergeFrom(value);
        } else {
          subnet_ = value;
        }
      } else {
        subnetBuilder_.mergeFrom(value);
      }
      if (subnet_ != null) {
        bitField0_ |= 0x00000080;
        onChanged();
      }
      return this;
    }
<pre>
The subnet in which to house the VPC Access Connector.
</pre>

<code>.google.cloud.vpcaccess.v1.Connector.Subnet subnet = 8;</code>
java-vpcaccess/proto-google-cloud-vpcaccess-v1/src/main/java/com/google/cloud/vpcaccess/v1/Connector.java