public Builder mergeCdnKey(com.google.cloud.video.stitcher.v1.CdnKey value) {
      if (cdnKeyBuilder_ == null) {
        if (((bitField0_ & 0x00000001) != 0)
            && cdnKey_ != null
            && cdnKey_ != com.google.cloud.video.stitcher.v1.CdnKey.getDefaultInstance()) {
          getCdnKeyBuilder().mergeFrom(value);
        } else {
          cdnKey_ = value;
        }
      } else {
        cdnKeyBuilder_.mergeFrom(value);
      }
      if (cdnKey_ != null) {
        bitField0_ |= 0x00000001;
        onChanged();
      }
      return this;
    }
<pre>
Required. The CDN key resource which replaces the resource on the server.
</pre>

<code>
.google.cloud.video.stitcher.v1.CdnKey cdn_key = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/UpdateCdnKeyRequest.java