@java.lang.Override
  public boolean getSupportSource() {
    return supportSource_;
  }
<pre>
Can be used as source language.
</pre>

<code>bool support_source = 3;</code>

@return The supportSource.
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/SupportedLanguage.java