public Builder mergeVideoMetadata(com.google.cloud.vertexai.api.VideoMetadata value) {
      if (videoMetadataBuilder_ == null) {
        if (metadataCase_ == 4
            && metadata_ != com.google.cloud.vertexai.api.VideoMetadata.getDefaultInstance()) {
          metadata_ =
              com.google.cloud.vertexai.api.VideoMetadata.newBuilder(
                      (com.google.cloud.vertexai.api.VideoMetadata) metadata_)
                  .mergeFrom(value)
                  .buildPartial();
        } else {
          metadata_ = value;
        }
        onChanged();
      } else {
        if (metadataCase_ == 4) {
          videoMetadataBuilder_.mergeFrom(value);
        } else {
          videoMetadataBuilder_.setMessage(value);
        }
      }
      metadataCase_ = 4;
      return this;
    }
<pre>
Optional. Video metadata. The metadata should only be specified while the
video data is presented in inline_data or file_data.
</pre>

<code>
.google.cloud.vertexai.v1.VideoMetadata video_metadata = 4 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Part.java