public Builder setGcsSource(com.google.cloud.vertexai.api.GcsSource.Builder builderForValue) {
      if (gcsSourceBuilder_ == null) {
        gcsSource_ = builderForValue.build();
      } else {
        gcsSourceBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<pre>
Required. Google Cloud Storage location.
</pre>

<code>
.google.cloud.vertexai.v1.GcsSource gcs_source = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/CsvSource.java