public com.google.cloud.kms.v1.KeyOperationAttestation getAttestation() {
    return attestation_ == null
        ? com.google.cloud.kms.v1.KeyOperationAttestation.getDefaultInstance()
        : attestation_;
  }
public com . google . cloud . kms . v1 . KeyOperationAttestation getAttestation ( ) { return attestation_ == null ? com . google . cloud . kms . v1 . KeyOperationAttestation . getDefaultInstance ( ) : attestation_ ; }
<pre>
Output only. Statement that was generated and signed by the HSM at key
creation time. Use this statement to verify attributes of the key as stored
on the HSM, independently of Google. Only provided for key versions with
[protection_level][google.cloud.kms.v1.CryptoKeyVersion.protection_level]
[HSM][google.cloud.kms.v1.ProtectionLevel.HSM].
</pre>

<code>.google.cloud.kms.v1.KeyOperationAttestation attestation = 8;</code>