public Builder clearId() {
      id_ = getDefaultInstance().getId();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
<pre>
Required. Identifier for this set of encryption options.
</pre>

<code>string id = 6 [(.google.api.field_behavior) = REQUIRED];</code>

@return This builder for chaining.
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/Encryption.java