public Builder clearGcsSource() {
      bitField0_ = (bitField0_ & ~0x00000001);
      gcsSource_ = null;
      if (gcsSourceBuilder_ != null) {
        gcsSourceBuilder_.dispose();
        gcsSourceBuilder_ = null;
      }
      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/AvroSource.java