public java.lang.String getSecretVersion() {
        java.lang.Object ref = secretVersion_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          secretVersion_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
<pre>
Required. The name of the Secret Version containing the encryption key.
`projects/{project}/secrets/{secret_id}/versions/{version_number}`
</pre>

<code>
string secret_version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
</code>

@return The secretVersion.
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Encryption.java