public boolean hasSourceTerm() {
        return ((bitField0_ & 0x00000001) != 0);
      }
<pre>
The source term is the term that will get match in the text,
</pre>

<code>.google.cloud.translation.v3.GlossaryTerm source_term = 1;</code>

@return Whether the sourceTerm field is set.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/GlossaryEntry.java