@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(key_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, key_);
    }
    for (int i = 0; i < inputs_.size(); i++) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, inputs_.getRaw(i));
    }
    if (((bitField0_ & 0x00000001) != 0)) {
      output.writeMessage(3, getEndTimeOffset());
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      output.writeMessage(4, getStartTimeOffset());
    }
    getUnknownFields().writeTo(output);
  }
<pre>
Start time in seconds for the atom, relative to the input file timeline.
The default is `0s`.
</pre>

<code>.google.protobuf.Duration start_time_offset = 4;</code>
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/EditAtom.java