public com.google.protobuf.Timestamp getExpireTime() {
      if (expireTimeBuilder_ == null) {
        return expireTime_ == null
            ? com.google.protobuf.Timestamp.getDefaultInstance()
            : expireTime_;
      } else {
        return expireTimeBuilder_.getMessage();
      }
    }
<pre>
Time at which the generated token will expire.
</pre>

<code>.google.protobuf.Timestamp expire_time = 2;</code>

@return The expireTime.
java-workstations/proto-google-cloud-workstations-v1beta/src/main/java/com/google/cloud/workstations/v1beta/GenerateAccessTokenResponse.java