public Builder setFileInputSource(
        com.google.cloud.translate.v3.FileInputSource.Builder builderForValue) {
      if (fileInputSourceBuilder_ == null) {
        source_ = builderForValue.build();
        onChanged();
      } else {
        fileInputSourceBuilder_.setMessage(builderForValue.build());
      }
      sourceCase_ = 2;
      return this;
    }
<pre>
Inline file source.
</pre>

<code>.google.cloud.translation.v3.FileInputSource file_input_source = 2;</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/ImportAdaptiveMtFileRequest.java