public Builder clearKmsKeyName() {
      kmsKeyName_ = getDefaultInstance().getKmsKeyName();
      bitField0_ = (bitField0_ & ~0x00002000);
      onChanged();
      return this;
    }
<pre>
Output only. The [KMS key
name](https://cloud.google.com/kms/docs/resource-hierarchy#keys) with which
the PhraseSet is encrypted. The expected format is
`projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}`.
</pre>

<code>
string kms_key_name = 13 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.resource_reference) = { ... }
</code>

@return This builder for chaining.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/PhraseSet.java