@java.lang.Override
  public com.google.cloud.visionai.v1.Corpus getCorpus() {
    return corpus_ == null ? com.google.cloud.visionai.v1.Corpus.getDefaultInstance() : corpus_;
  }
<pre>
Required. The corpus which replaces the resource on the server.
</pre>

<code>.google.cloud.visionai.v1.Corpus corpus = 1 [(.google.api.field_behavior) = REQUIRED];
</code>

@return The corpus.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/UpdateCorpusRequest.java