public boolean hasExpireTime() {
      return ((bitField0_ & 0x00000002) != 0);
    }
<pre>
Time at which the generated token will expire.
</pre>

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

@return Whether the expireTime field is set.
java-workstations/proto-google-cloud-workstations-v1/src/main/java/com/google/cloud/workstations/v1/GenerateAccessTokenResponse.java