public Builder setLanguagePair(
        com.google.cloud.translate.v3.Glossary.LanguageCodePair.Builder builderForValue) {
      if (languagePairBuilder_ == null) {
        languages_ = builderForValue.build();
        onChanged();
      } else {
        languagePairBuilder_.setMessage(builderForValue.build());
      }
      languagesCase_ = 3;
      return this;
    }
<pre>
Used with unidirectional glossaries.
</pre>

<code>.google.cloud.translation.v3.Glossary.LanguageCodePair language_pair = 3;</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/Glossary.java