public Builder mergeListConfig(
        com.google.cloud.visionai.v1.DataSchemaDetails.ListConfig value) {
      if (listConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && listConfig_ != null
            && listConfig_
                != com.google.cloud.visionai.v1.DataSchemaDetails.ListConfig.getDefaultInstance()) {
          getListConfigBuilder().mergeFrom(value);
        } else {
          listConfig_ = value;
        }
      } else {
        listConfigBuilder_.mergeFrom(value);
      }
      if (listConfig_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }
<pre>
Config for List data type.
</pre>

<code>.google.cloud.visionai.v1.DataSchemaDetails.ListConfig list_config = 8;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/DataSchemaDetails.java