private com.google.protobuf.SingleFieldBuilderV3<
              com.google.cloud.visionai.v1.DataSchemaDetails,
              com.google.cloud.visionai.v1.DataSchemaDetails.Builder,
              com.google.cloud.visionai.v1.DataSchemaDetailsOrBuilder>
          getValueSchemaFieldBuilder() {
        if (valueSchemaBuilder_ == null) {
          valueSchemaBuilder_ =
              new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.cloud.visionai.v1.DataSchemaDetails,
                  com.google.cloud.visionai.v1.DataSchemaDetails.Builder,
                  com.google.cloud.visionai.v1.DataSchemaDetailsOrBuilder>(
                  getValueSchema(), getParentForChildren(), isClean());
          valueSchema_ = null;
        }
        return valueSchemaBuilder_;
      }
<pre>
The value's data schema in the list.
</pre>

<code>.google.cloud.visionai.v1.DataSchemaDetails value_schema = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/DataSchemaDetails.java