private void ensureTermsIsMutable() {
        if (!((bitField0_ & 0x00000001) != 0)) {
          terms_ = new java.util.ArrayList<com.google.cloud.translate.v3.GlossaryTerm>(terms_);
          bitField0_ |= 0x00000001;
        }
      }
<pre>
Represents a single entry for an equivalent term set glossary. This is used
for equivalent term sets where each term can be replaced by the other terms
in the set.
</pre>

Protobuf type {@code google.cloud.translation.v3.GlossaryEntry.GlossaryTermsSet}
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/GlossaryEntry.java