private void ensureContentIsMutable() {
      if (!content_.isModifiable()) {
        content_ = new com.google.protobuf.LazyStringArrayList(content_);
      }
      bitField0_ |= 0x00000004;
    }
<pre>
Required. The resource name for the dataset to use for adaptive MT.
`projects/{project}/locations/{location-id}/adaptiveMtDatasets/{dataset}`
</pre>

<code>
string dataset = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
</code>

@param value The bytes for dataset to set.
@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/AdaptiveMtTranslateRequest.java