public Builder mergeMasterAuthorizedNetworksConfig(
        com.google.cloud.telcoautomation.v1.MasterAuthorizedNetworksConfig value) {
      if (masterAuthorizedNetworksConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000080) != 0)
            && masterAuthorizedNetworksConfig_ != null
            && masterAuthorizedNetworksConfig_
                != com.google.cloud.telcoautomation.v1.MasterAuthorizedNetworksConfig
                    .getDefaultInstance()) {
          getMasterAuthorizedNetworksConfigBuilder().mergeFrom(value);
        } else {
          masterAuthorizedNetworksConfig_ = value;
        }
      } else {
        masterAuthorizedNetworksConfigBuilder_.mergeFrom(value);
      }
      if (masterAuthorizedNetworksConfig_ != null) {
        bitField0_ |= 0x00000080;
        onChanged();
      }
      return this;
    }
<pre>
Optional. Master Authorized Network that supports multiple CIDR blocks.
Allows access to the k8s master from multiple blocks. It cannot be set at
the same time with the field man_block.
</pre>

<code>
.google.cloud.telcoautomation.v1.MasterAuthorizedNetworksConfig master_authorized_networks_config = 8 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-telcoautomation/proto-google-cloud-telcoautomation-v1/src/main/java/com/google/cloud/telcoautomation/v1/FullManagementConfig.java