public Builder setDataSchema(com.google.cloud.visionai.v1.DataSchema value) {
      if (dataSchemaBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        dataSchema_ = value;
      } else {
        dataSchemaBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
<pre>
Required. The data schema to create.
</pre>

<code>
.google.cloud.visionai.v1.DataSchema data_schema = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/CreateDataSchemaRequest.java