public Builder clearCidrBlocks() {
      if (cidrBlocksBuilder_ == null) {
        cidrBlocks_ = java.util.Collections.emptyList();
        bitField0_ = (bitField0_ & ~0x00000001);
        onChanged();
      } else {
        cidrBlocksBuilder_.clear();
      }
      return this;
    }
<pre>
Optional. cidr_blocks define up to 50 external networks that could access
Kubernetes master through HTTPS.
</pre>

<code>
repeated .google.cloud.telcoautomation.v1alpha1.MasterAuthorizedNetworksConfig.CidrBlock cidr_blocks = 1 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-telcoautomation/proto-google-cloud-telcoautomation-v1alpha1/src/main/java/com/google/cloud/telcoautomation/v1alpha1/MasterAuthorizedNetworksConfig.java