private void ensureCidrBlocksIsMutable() {
      if (!((bitField0_ & 0x00000001) != 0)) {
        cidrBlocks_ =
            new java.util.ArrayList<
                com.google.cloud.telcoautomation.v1alpha1.MasterAuthorizedNetworksConfig.CidrBlock>(
                cidrBlocks_);
        bitField0_ |= 0x00000001;
      }
    }
<pre>
Configuration of the Master Authorized Network that support multiple CIDRs
</pre>

Protobuf type {@code google.cloud.telcoautomation.v1alpha1.MasterAuthorizedNetworksConfig}
java-telcoautomation/proto-google-cloud-telcoautomation-v1alpha1/src/main/java/com/google/cloud/telcoautomation/v1alpha1/MasterAuthorizedNetworksConfig.java